Dolphin doesn’t seem to understand that multi volume filesystems should be listed just once, not multiple times (currently will list once for each volume). I would contribute $50to anyone who fixes this annoying bug.
Thanks for sponsoring this! Is there a bug report tracking the issue? I think that would make it clearer what exactly the issue is, and how it ought to be fixed. And with such a bug report, you can be sure that you agree to the shape and direction of the issue described therein, so what ends up being merged is something you’re happy to have paid for.