[2088488] Apply move_player_to_grid on untransform only if the untransform caused loss of flight/lev.

git-svn-id: https://crawl-ref.svn.sourceforge.net/svnroot/crawl-ref/trunk@6888 c06c8d41-db1a-0410-9941-cceddc491573

Created by  dshaligram  on September 6, 2008
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