When you click "Revert Template" and select No, it redirects you back to the home of the template manager, while it should redirect you to the template you were working on imo.
It redirects correctly if you select Yes.
Is this really a bug? imo I don't think so, moving to suggestions
I see it as a bug since Yes and No act different while they shouldn't.
Well, they should act different, but you know what I mean :p
Where did you click the revert button?
Teplates > Modify/Delete > Expand > Change Original of Loginbox or something > Just add a space at the end and save
Then click Revert to original and click No.