Client does not resend desired server settings after ruleset change
Keeping this one on hold for now. I think that together with #43748 the *fix* causes any ruleset one changes to get polluted by settings from the default ruleset game.ruleset.
There's also regression related to 'topology' setting. This causes it to get sent also when saved game is loaded, triggering server's error about the fact that the setting cannot be changed after game has begun.
Reported by Dino the Dinosore in http://forum.freeciv.org/f/viewtopic.php?f=9&t=92134#p104834
Server settings saved on client side ("desired settings") are not used if one changes the ruleset, i.e., does not use the default. The server does reset settings when a new ruleset is loaded, and I guess the client does not resend the desired settings after that.