Some time ago there was a great window where I could choose which revisions I want to merge. And recently the new dialog started to appear. It says :
This will make
I've find out what was wrong.
It doesn't depend on the version of Android Studio.
The problem was in wrong path to my trunk location:
My trunk folder contains multiple folders (yes, it's bad) and in configuration of SVN there was:
https://my_trunk
instead of
https://my_trunk/my_concrete_trunk_folder
After I specified location of trunk I got the dialog I wanted: