CleverRaven/Cataclysm-DDA — pull request #6911 by BevapDin (2014-03-25 17:35:22+00:00)
Title: Clear screen when zooming.

This prevents artifacts of previously displayed content to appear outside of the draw area (when the currently drawn area is smaller than the previously drawn area).

Fixes https://github.com/CleverRaven/Cataclysm-DDA/issues/6903#issuecomment-38581870