https://bugs.kde.org/show_bug.cgi?id=445830

            Bug ID: 445830
           Summary: Usually the app crashes when I select words
                    individually in the program's text editor.
           Product: kdenlive
           Version: 20.12.3
          Platform: Other
                OS: Linux
            Status: REPORTED
          Severity: normal
          Priority: NOR
         Component: User Interface
          Assignee: j...@kdenlive.org
          Reporter: gulhermeprado...@gmail.com
  Target Milestone: ---

Created attachment 143779
  --> https://bugs.kde.org/attachment.cgi?id=143779&action=edit
Usually the app crashes when I select words individually in the program's text
editor.

Application: kdenlive (20.12.3)

Qt Version: 5.15.2
Frameworks Version: 5.80.0
Operating System: Linux 5.11.0-38-lowlatency x86_64
Windowing System: X11
Drkonqi Version: 5.21.4
Distribution: Ubuntu 21.04

-- Information about the crash:
- What I was doing when the application crashed:

Usually the app crashes when I select words individually in the program's text
editor. Something similar happens with Libre Office, however, in this last
example, it happens more when I paste some text into the application.

- Custom settings of the application:

I don't remember doing any custom customization in any of the mentioned apps.

The crash can be reproduced every time.

-- Backtrace:
Application: Kdenlive (kdenlive), signal: Segmentation fault

[KCrash Handler]
#4  0x00007f82a677c9e0 in QWidget::window() const () from
/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#5  0x00007f82a695456a in ?? () from /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#6  0x00007f82a6955eb9 in QWidgetTextControl::processEvent(QEvent*, QTransform
const&, QWidget*) () from /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#7  0x00007f82a694b31e in QWidgetTextControl::processEvent(QEvent*, QPointF
const&, QWidget*) () from /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#8  0x00007f82a6a63c0e in non-virtual thunk to
QGraphicsTextItem::contextMenuEvent(QGraphicsSceneContextMenuEvent*) () from
/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#9  0x00007f82a6a70d4a in QGraphicsItem::sceneEvent(QEvent*) () from
/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#10 0x00007f82a6a70ef8 in QGraphicsTextItem::sceneEvent(QEvent*) () from
/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#11 0x00007f82a6a94772 in
QGraphicsScene::contextMenuEvent(QGraphicsSceneContextMenuEvent*) () from
/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#12 0x00007f82a6aa6a88 in QGraphicsScene::event(QEvent*) () from
/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#13 0x00007f82a6752783 in QApplicationPrivate::notify_helper(QObject*, QEvent*)
() from /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#14 0x00007f82a5c627ba in QCoreApplication::notifyInternal2(QObject*, QEvent*)
() from /lib/x86_64-linux-gnu/libQt5Core.so.5
#15 0x00007f82a6ac5fdd in QGraphicsView::contextMenuEvent(QContextMenuEvent*)
() from /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#16 0x00007f82a67955de in QWidget::event(QEvent*) () from
/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#17 0x00007f82a6843b32 in QFrame::event(QEvent*) () from
/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#18 0x00007f82a5c6252b in
QCoreApplicationPrivate::sendThroughObjectEventFilters(QObject*, QEvent*) ()
from /lib/x86_64-linux-gnu/libQt5Core.so.5
#19 0x00007f82a6752772 in QApplicationPrivate::notify_helper(QObject*, QEvent*)
() from /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#20 0x00007f82a675ab01 in QApplication::notify(QObject*, QEvent*) () from
/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#21 0x00007f82a5c627ba in QCoreApplication::notifyInternal2(QObject*, QEvent*)
() from /lib/x86_64-linux-gnu/libQt5Core.so.5
#22 0x00007f82a67afad4 in ?? () from /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#23 0x00007f82a67b2615 in ?? () from /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#24 0x00007f82a6752783 in QApplicationPrivate::notify_helper(QObject*, QEvent*)
() from /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#25 0x00007f82a5c627ba in QCoreApplication::notifyInternal2(QObject*, QEvent*)
() from /lib/x86_64-linux-gnu/libQt5Core.so.5
#26 0x00007f82a6047b13 in
QGuiApplicationPrivate::processMouseEvent(QWindowSystemInterfacePrivate::MouseEvent*)
() from /lib/x86_64-linux-gnu/libQt5Gui.so.5
#27 0x00007f82a601ce2c in
QWindowSystemInterface::sendWindowSystemEvents(QFlags<QEventLoop::ProcessEventsFlag>)
() from /lib/x86_64-linux-gnu/libQt5Gui.so.5
#28 0x00007f8291aa6a6e in ?? () from /lib/x86_64-linux-gnu/libQt5XcbQpa.so.5
#29 0x00007f829c0de8eb in g_main_context_dispatch () from
/lib/x86_64-linux-gnu/libglib-2.0.so.0
#30 0x00007f829c131d28 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#31 0x00007f829c0dc023 in g_main_context_iteration () from
/lib/x86_64-linux-gnu/libglib-2.0.so.0
#32 0x00007f82a5cbc204 in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
from /lib/x86_64-linux-gnu/libQt5Core.so.5
#33 0x00007f82a5c6111b in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from
/lib/x86_64-linux-gnu/libQt5Core.so.5
#34 0x00007f82a69646d2 in QDialog::exec() () from
/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#35 0x00005630681d55e0 in ?? ()
#36 0x00005630681d6c47 in ?? ()
#37 0x00007f82a5c9a5c7 in ?? () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#38 0x00007f82a674bbd6 in QAction::triggered(bool) () from
/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#39 0x00007f82a674e908 in QAction::activate(QAction::ActionEvent) () from
/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#40 0x00007f82a68d9a92 in ?? () from /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#41 0x00007f82a68e1759 in ?? () from /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#42 0x00007f82a67955de in QWidget::event(QEvent*) () from
/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#43 0x00007f82a6752783 in QApplicationPrivate::notify_helper(QObject*, QEvent*)
() from /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#44 0x00007f82a6759e5b in QApplication::notify(QObject*, QEvent*) () from
/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#45 0x00007f82a5c627ba in QCoreApplication::notifyInternal2(QObject*, QEvent*)
() from /lib/x86_64-linux-gnu/libQt5Core.so.5
#46 0x00007f82a6758e77 in QApplicationPrivate::sendMouseEvent(QWidget*,
QMouseEvent*, QWidget*, QWidget*, QWidget**, QPointer<QWidget>&, bool, bool) ()
from /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#47 0x00007f82a67afe7e in ?? () from /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#48 0x00007f82a67b2615 in ?? () from /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#49 0x00007f82a6752783 in QApplicationPrivate::notify_helper(QObject*, QEvent*)
() from /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#50 0x00007f82a5c627ba in QCoreApplication::notifyInternal2(QObject*, QEvent*)
() from /lib/x86_64-linux-gnu/libQt5Core.so.5
#51 0x00007f82a6047b13 in
QGuiApplicationPrivate::processMouseEvent(QWindowSystemInterfacePrivate::MouseEvent*)
() from /lib/x86_64-linux-gnu/libQt5Gui.so.5
#52 0x00007f82a601ce2c in
QWindowSystemInterface::sendWindowSystemEvents(QFlags<QEventLoop::ProcessEventsFlag>)
() from /lib/x86_64-linux-gnu/libQt5Gui.so.5
#53 0x00007f8291aa6a6e in ?? () from /lib/x86_64-linux-gnu/libQt5XcbQpa.so.5
#54 0x00007f829c0de8eb in g_main_context_dispatch () from
/lib/x86_64-linux-gnu/libglib-2.0.so.0
#55 0x00007f829c131d28 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#56 0x00007f829c0dc023 in g_main_context_iteration () from
/lib/x86_64-linux-gnu/libglib-2.0.so.0
#57 0x00007f82a5cbc204 in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
from /lib/x86_64-linux-gnu/libQt5Core.so.5
#58 0x00007f82a5c6111b in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from
/lib/x86_64-linux-gnu/libQt5Core.so.5
#59 0x00007f82a68df148 in ?? () from /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#60 0x00007f82a68df273 in QMenu::exec(QPoint const&, QAction*) () from
/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#61 0x00005630681c2d69 in ?? ()
#62 0x00007f82a67955de in QWidget::event(QEvent*) () from
/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#63 0x00007f82a6752783 in QApplicationPrivate::notify_helper(QObject*, QEvent*)
() from /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#64 0x00007f82a675ab01 in QApplication::notify(QObject*, QEvent*) () from
/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#65 0x00007f82a5c627ba in QCoreApplication::notifyInternal2(QObject*, QEvent*)
() from /lib/x86_64-linux-gnu/libQt5Core.so.5
#66 0x00007f82a67afad4 in ?? () from /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#67 0x00007f82a67b2615 in ?? () from /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#68 0x00007f82a6752783 in QApplicationPrivate::notify_helper(QObject*, QEvent*)
() from /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#69 0x00007f82a5c627ba in QCoreApplication::notifyInternal2(QObject*, QEvent*)
() from /lib/x86_64-linux-gnu/libQt5Core.so.5
#70 0x00007f82a6047b13 in
QGuiApplicationPrivate::processMouseEvent(QWindowSystemInterfacePrivate::MouseEvent*)
() from /lib/x86_64-linux-gnu/libQt5Gui.so.5
#71 0x00007f82a601ce2c in
QWindowSystemInterface::sendWindowSystemEvents(QFlags<QEventLoop::ProcessEventsFlag>)
() from /lib/x86_64-linux-gnu/libQt5Gui.so.5
#72 0x00007f8291aa6a6e in ?? () from /lib/x86_64-linux-gnu/libQt5XcbQpa.so.5
#73 0x00007f829c0de8eb in g_main_context_dispatch () from
/lib/x86_64-linux-gnu/libglib-2.0.so.0
#74 0x00007f829c131d28 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#75 0x00007f829c0dc023 in g_main_context_iteration () from
/lib/x86_64-linux-gnu/libglib-2.0.so.0
#76 0x00007f82a5cbc204 in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
from /lib/x86_64-linux-gnu/libQt5Core.so.5
#77 0x00007f82a5c6111b in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from
/lib/x86_64-linux-gnu/libQt5Core.so.5
#78 0x00007f82a5c69604 in QCoreApplication::exec() () from
/lib/x86_64-linux-gnu/libQt5Core.so.5
#79 0x00005630680cb924 in ?? ()
#80 0x00007f82a547d565 in __libc_start_main (main=0x5630680ca470, argc=2,
argv=0x7ffcb6a0ab88, init=<optimized out>, fini=<optimized out>,
rtld_fini=<optimized out>, stack_end=0x7ffcb6a0ab78) at ../csu/libc-start.c:332
#81 0x00005630680d2fae in _start ()
[Inferior 1 (process 19391) detached]

Possible duplicates by query: bug 444411, bug 444002, bug 443969, bug 443954,
bug 443935.

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