SUMMARY
When I try to overwrite a folder from/to FTP site dolphin crashes.


STEPS TO REPRODUCE
1. Split Dolphin view
2. Set on one side the local folder on the other the remote folder
3. Select and copy one folder to the other side
4. check the "Apply to all" checkbox
5. Dolphin crashes

OBSERVED RESULT
When checking the "Apply to all" checkbox Dolphin crashes


EXPECTED RESULT
It should overwrite the full content of the folder into the other


SOFTWARE/OS VERSIONS
Linux/KDE Plasma: 
NAME="KDE neon"
VERSION="5.20"
ID=neon
ID_LIKE="ubuntu debian"
PRETTY_NAME="KDE neon User Edition 5.20"
VARIANT="User Edition"
VERSION_ID="20.04"
KDE Plasma Version: 5.20.4
KDE Frameworks Version: 5.77.0
Qt Version: 5.15.2

kio=5.76.0-0xneon+20.04+focal+build18
kio=5.75.0-0xneon+20.04+focal+build17
kio=5.75.0-0xneon+20.04+focal+build16

kio-extras=4:20.08.3-0xneon+20.04+focal+build19
kio-extras=4:20.08.3-0xneon+20.04+focal+build19
kio-extras=4:20.08.3-0xneon+20.04+focal+build18
kio-extras=4:20.08.3-0xneon+20.04+focal+build17
kio-extras=4:20.08.2-0xneon+20.04+focal+build17

kio-extras-data=4:20.08.3-0xneon+20.04+focal+build19
kio-extras-data=4:20.08.3-0xneon+20.04+focal+build18
kio-extras-data=4:20.08.3-0xneon+20.04+focal+build17
kio-extras-data=4:20.08.2-0xneon+20.04+focal+build17

ADDITIONAL INFORMATION