MahApps/MahApps.Metro — pull request #288 by lukaspj (2012-12-22 13:06:40+00:00)
Title: Flyout resize fix (3rd)

When flyouts are dynamically resized, they wont hide properly as they
hide as if they were not resized.
This adds a listener to OnRenderSizeChanged which fixes
the issue.

Also added the fix from issue #260

Fixed pull request #284

Fixed for both left and right positioned flyouts.

(Third time is the lucky time right?)