[OPEN-EXTJSIV-293] Strange behavior on window drag

[c2c-guinness]

When dragging a window some elements are not included in the "ghost".

In the screenshots attached you can see the heading of a collapsed "east region" panel.

Sometimes, if I hide the window, a similar issue occurs where the window hides but the erroneous item completely remains.

If I were to expand the panel in the screenshots then the same behavior would occur, leaving the entire panel visible during drag or floating during hide.

The behavior does not occur if the panel is created as collapsed and never expanded or created as expanded and never collapsed, or at least not so far in my tests.

The same problem can be seen in the Ext4 example here:
http://dev.sencha.com/deploy/ext-4.0...ow/layout.html

(You'll need to collapse the west panel before you'll see the problem)

Thanks,
Luke

[c2c-guinness]

Forgot to attach...

Note that certain parts of my screenshots have been intentionally blurred via my screenshot program, it has nothing to do with ExtJS behavior obviously.