https://bugs.documentfoundation.org/show_bug.cgi?id=146796
Bug ID: 146796
Summary: Regular Expression Undo/Redo Corruption and Lost Text
Product: LibreOffice
Version: 7.2.5.2 release
Hardware: All
OS: All
Status: UNCONFIRMED
Severity: normal
Priority: medium
Component: Writer
Assignee: [email protected]
Reporter: [email protected]
Description:
Running a regular expression, then undoing/redoing multiple times, is
corrupting and/or losing text.
Steps to Reproduce:
0. Open the attached document.
1. Edit > Find and Replace (Ctrl+H).
2. Make sure "Other Options" is expanded + the "Regular Expressions" box is
checked.
3.
Find: ^$
Replace: <--- Completely blank
4. Click in the first line:
This. <--- Click in here
And this.
And even this.
Press Replace 3 times:
This.
And this.
And even this.
5. Press Undo (Ctrl+Z) 3 times:
This.
And this.
And even this.
6. Press Redo (Ctrl+Y) 3 times:
This.
<--- Empty Line
<--- Empty Line
- - -
And, I haven't been able to reproduce this consistently though...
While pressing Undo/Redo a random number of times, I also arrive at:
This.
!!br0ken!!
and even more Undo/Redos lead to:
!!br0ken!!!!br0ken!!!!br0ken!!!!br0ken!!
- - -
Semi-Related Bug???
I was even able to reproduce a "!!br0ken!!" + full-on crash by:
Using my attachment + following Steps 1-3 in:
- Bug #60259: Writer behaves erratically when reverse replacing $ with nothing
then undoing/redoing a few times.
Actual Results:
Whole lines of text disappear (Step 6) + some paragraph breaks aren't returned
properly (Step 5) + sometimes "!!br0ken!!" text appears.
Expected Results:
Lines shouldn't get eaten.
If you replace 3 empty paragraphs and undo 3 times, you expect the text to
return exactly as it was in the original document.
Reproducible: Always
User Profile Reset: No
Additional Info:
Version: 7.2.5.2 (x64) / LibreOffice Community
Build ID: 499f9727c189e6ef3471021d6132d4c694f357e5
CPU threads: 8; OS: Windows 10.0 Build 19044; UI render: Skia/Vulkan; VCL: win
Locale: en-US (en_US); UI: en-US
Calc: threaded
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