lib/model: Fix locking when resending cluster-configs (#7107)
lib/model: Fix locking when resending cluster-configs (#7107)


syncthing/syncthing,imsodin/syncthing,imsodin/syncthing,syncthing/syncthing,syncthing/syncthing,syncthing/syncthing,syncthing/syncthing,wweich/syncthing,imsodin/syncthing,wweich/syncthing,wweich/syncthing,wweich/syncthing,imsodin/syncthing,syncthing/syncthing,imsodin/syncthing