More backport requests

[Nate Graham]

Hello again distro packagers!

I have some more backports to recommend, to keep users of the latest 
versions of Dolphin and KIO from suffering significant crashes for the 
next two weeks:

- 
https://commits.kde.org/dolphin/c95d7fae79a309ed7f2df393fa20257cb20d54a8 
for your Dolphin 20.12 package, to fix a crash-on-launch bug for some 
Dolphin users

- https://commits.kde.org/kio/9dc9e26b9196111eeacb5609b36957f74f5a14c4 
for your kio 5.77 package to fix a crash when trying to "apply to all" 
in the move/copy overwrite dialog


Nate