Plugin SVN question

Hi a while ago i was commiting my plugin onto the trunk folder of my plugin. I noticed that i was being released instandly while i did not tag that version yet.

Later on i did the same and yet again i did not tag the released the software, after this second commit the code wasnt auto released.

So my question is was the situation in autoreleasing the trunk directory a bug ? and has it been fixed ?. I hope i was a bug that is fixed now meaning i can upload my beta code onto the svn trunk so i could let my beta testers check out the test versions of my code.

Greetz Johnny