xolox/vim-session — pull request #45 by inkarkat (2013-05-23 14:08:18+00:00)
Title: Allow to forget a saved default session, too.

Shutting off the query for auto-loading of a previous session is just as important for the default session, not just custom sessions. This was also the behavior of my original pull request; I don't know why you left that part out.