The resource tab is showing that I have three versions displaying, even though I only have one. If "show multiple resources" is switched off, the tab should just give the name of the translation I can see.
I can reproduce this, and I'll create a case.
This should be fixed in 6.6 RC 1.
Looking good—especially with the Cmd-Shift-M addition (Ctrl-Shift-M for the impoverished [:D])