When the mouse is placed on the "resizing object name" axis when on a line with "add action", you should not be able to resize since there is no visible line there.
Illustration showing a red dot that indicates where mouse can resize:
<img src="http://dl.dropbox.com/u/1024727/c2/actionbug.PNG" border="0" />
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When the mouse is placed on the "resizing condition width" axis and on top of a group, you should not be able to resize since there is no visible line there.
Illustration showing a red dot that indicates where mouse can resize:
<img src="http://dl.dropbox.com/u/1024727/c2/groupbug.PNG" border="0" />