Automatic minefield tag removal

[Lisif Deoral]

In an ooold PBW game going on at a slooow pace, I'm at war again after many months (more than a year maybe) of real time.

I've discovered some minefields the hard way and got them automatically marked on the map. I then sent some minesweepers to clean up the minefields; they swept all the mines there but left the minefield marker in place (I had to manually unmark it). I know they swept all the mines because my ships took no damage.

I vaguely remember from ages past that when a known minefield was completely cleaned by a minesweeper the minefield marker was also automatically removed... Am I wrong? Is that a switch hidden somewhere?

Thanks!

PS: Nice to see a lot of known nicks still active here... I think I might be back on these forums for SEV