Pending changes are now moved to the bottom of the list, since they still need their fair chance to complete or fail, and until then are just clutter.

Also made a small change to make it more reliable and consistent (before it would occasionally not trigger the change. Fixable with a reload, but still, I'd like to avoid having that kind of inconvenience for something that's meant to be a simple convenience in the first place)

Corrected an issue that would sometimes cause the failed merge items to shuffle around each other at the top of the list.