[b5] Panning with middle mouse button deselects video clips

Hi,

when I select some elements and pan the timeline (in edit mode) using the middle mouse button, video clips are deselected.

Panning with the mouse wheel works OK.

See the screencast, the first panning is with the wheel (cursor is in the same position), then with the middle button - that is when video clips are deselected:

www (dot) screencast (dot) com /t/gNSxgD35
(I'm not allowed to post URLs...)

www (dot) screencast (dot) com /t/gNSxgD35
(I'm not allowed to post URLs...)

just tried watching http://www.screencast.com/t/gNSxgD35 but is asking for flash player. Unfortunately it's not supported on android devices so I was unable to watch it.