SUMMARY
When copying/cutting a folder or file into another directory and file already exists in that directory, Dolphin crashes when selecting the "Apply to All" option.

STEPS TO REPRODUCE
1) Copy a folder/file into another directory that contains files of the same name
2)when asked to skip or write into the file, select the "Apply to All" option.
3) Dolphin crashes with notification popup "Moving Failed) Application closed unexpectedly" 

OBSERVED RESULT
Dolphin crashes

EXPECTED RESULT
successful application of "Apply to All" option.

SOFTWARE/OS VERSIONS
  
OS: Manjaro 20.2 Nibia
Kernel: x86_64 Linux 5.10.2-2-MANJARO
DE: KDE 5.77.0 / Plasma 5.20.4

ADDITIONAL INFORMATION



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Reading symbols from dolphin...
(No debugging symbols found in dolphin)
(gdb) run
Starting program: /usr/bin/dolphin 
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/usr/lib/libthread_db.so.1".
[New Thread 0x7ffff0601640 (LWP 15142)]
[New Thread 0x7fffefa63640 (LWP 15143)]
[New Thread 0x7fffee852640 (LWP 15144)]
[New Thread 0x7fffece23640 (LWP 15145)]
[New Thread 0x7fffddb93640 (LWP 15146)]
[New Thread 0x7fffdd392640 (LWP 15147)]
[New Thread 0x7fffdcb91640 (LWP 15148)]
[New Thread 0x7fffcffff640 (LWP 15149)]
[Detaching after fork from child process 15157]
kf.kio.core: We got some errors while running testparm "WARNING: No path in service Anonymous - making it unavailable!\nLoaded services file OK.\nWeak crypto is allowed"
[Detaching after fork from child process 15158]
[Detaching after fork from child process 15189]
[Detaching after fork from child process 15195]
[Detaching after fork from child process 15201]
[Detaching after fork from child process 15207]
[New Thread 0x7fffcf7fe640 (LWP 15213)]
[Thread 0x7fffcf7fe640 (LWP 15213) exited]
kf.kio.widgets: Could not open file for comparison: "/home/shaunf/Wolfram Mathematica"
qt.qpa.xcb: QXcbConnection: XCB error: 3 (BadWindow), sequence: 3158, resource id: 14680690, major code: 40 (TranslateCoords), minor code: 0
kf.kio.widgets: Could not open file for comparison: "/home/shaunf/Wolfram Mathematica/GR_Solitons"

Thread 1 "dolphin" received signal SIGSEGV, Segmentation fault.
0x00007ffff68258e5 in QAction::setEnabled(bool) () from /usr/lib/libQt5Widgets.so.5