https://bugs.kde.org/show_bug.cgi?id=404227

            Bug ID: 404227
           Summary: Crash in Cryptography::TopLevelMessage::fetchChildren
                    after network reconnect
           Product: trojita
           Version: 0.7
          Platform: Gentoo Packages
                OS: Linux
            Status: REPORTED
          Severity: normal
          Priority: NOR
         Component: Core
          Assignee: trojita-b...@kde.org
          Reporter: vidra.jo...@seznam.cz
  Target Milestone: ---

Created attachment 117992
  --> https://bugs.kde.org/attachment.cgi?id=117992&action=edit
Backtrace generated by the KCrash handler after the segfault

SUMMARY
Trojitá crashes when several network actions are enqueued and NetworkManager
reconnects to the network after Wi-Fi failure.

STEPS TO REPRODUCE
The problem is not easily reproducible, so I guess that it depends on some
context which I didn't take into account. But it happpened twice in a single
month, so I think it is not just a fluke.
1. Have a stuck / unresponsive network, i.e. have NetworkManager announce
connectivity without it actually working.
2. Open another mailbox and try to read an uncached message.
3. Reconnect to a working network.

OBSERVED RESULT
Trojitá crashes with the attached backtrace.


EXPECTED RESULT
Trojitá preferrably cleanly reconnects and performs all the enqueued actions,
or alternatively cleans the queue and does nothing.


SOFTWARE/OS VERSIONS
Linux/KDE Plasma: 
(available in About System)
KDE Plasma Version: 5.14.5
KDE Frameworks Version: 5.52.0
Qt Version: 5.11.3

ADDITIONAL INFORMATION

A backtrace is in the attachment.

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