After the game had crashed (due to too much tabbing, but that is not the topic here), an additional savegame was created. I loaded the savegame and played a while, saved and quitted. Now I had two savegames. I clicked the first (the recovery save) to look for a delete button, and as there was none the game was loaded. Quitted it because loading was not the action I wanted, but quitting killed as well the (now outdated) recovery save as well as the identically named “not recovery” save game.