[dolphin] [Bug 431371] New: Dolphin crashes when trying to copy merge a folder into a similar by copying contents

[David Abreu]

https://bugs.kde.org/show_bug.cgi?id=431371

            Bug ID: 431371
           Summary: Dolphin crashes when trying to copy merge a folder
                    into a similar by copying contents
           Product: dolphin
           Version: 20.12.0
          Platform: Neon Packages
                OS: Linux
            Status: REPORTED
          Severity: normal
          Priority: NOR
         Component: general
          Assignee: dolphin-bugs-null at kde.org
          Reporter: adabreug94 at gmail.com
                CC: kfm-devel at kde.org
  Target Milestone: ---

SUMMARY
Several times, when trying to copy a folder from one location to other location
where a previous version of the folder (in this case it containning a git repo,
for instance) already exists, Dolphin crashes once the user tries to select the
option "Aplly for all" in the Copy/Overwrite/Omit menu that is launched in this
cases.

STEPS TO REPRODUCE
1. Have a folder (Test1) with some files
2. Copy this folder to other location
3. Make some changes in the files inside Test1
4. Try to copy again the folder Test1 to the location where previously was
copied
5. When the Overwrite/Omit menu appears, try to check "Apply for all" options
to avoid being asked for overwrite/omit when every file is copied

OBSERVED RESULT
Dolphin crashed when try to activate this option, closing the program and
cancelling the copy operation (which never starts).
This is issue is pretty similar to an very old one described in here:
https://bugs.kde.org/show_bug.cgi?id=244800

EXPECTED RESULT
Dolphin should be able to copy the folder and overwrite/omit the files
accordingly to the user selected option without any issues (like in previous
versions). 

Operating System: KDE neon 5.20
KDE Plasma Version: 5.20.4
KDE Frameworks Version: 5.77.0
Qt Version: 5.15.2
Kernel Version: 5.4.0-58-generic
OS Type: 64-bit
Processors: 4 × AMD A6-5200 APU with Radeon™ HD Graphics
Memory: 3.3 GiB of RAM
Graphics Processor: AMD KABINI

ADDITIONAL INFORMATION
I really think this is a regression introduced at some point in the latest
releases I have applied cause am using this Neon distro since 5.19 version and
also use Kubuntu 18.04.5 and it never happened to me. However, since the last
time I upgraded, which I don't do often cause I removed Discover and related
software, am experiencing this issue. I have noted also that this is more
likely to happen when the folder involved in the manual copy/paste operation is
a folder containing a git repo.

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