Using the Tagger script, behavior of 'Pos1' and 'End' has changed

Using those two buttons previously acted within the taggers own context, in its edit window. Now, when i use one of the buttons, it acts differently, on the lister in the backgound (the images are in the full screen mode, with Tagger at the left, when i edit the tags), going to the first or last image, instead in the edit window.

This was different in version 12.