For now assigned to me to figure out what should be the right way for this. I don't have time for it right now but I should do it this week.
You need to use this keyserver line:
(Enter this all on one line; "%2C" directly at the end of "Seal")
This is not a valid url and if you enter it this way into the OpenPGP Keyserver field in Kleopatra it will end up with 2.3 in dirmngr.conf with spaces inside it and the next start you load the config dialog everything after the first space will be gone.
For 2.2 i think this will also be different because then it will be put into gpg.conf but probably have similar problems.