Fix bug calling Dialog.show() while hide() fade-out is in progress, causing Dialog to be added to !DialogLevelManager stack twice.   Fixes #16152 !strict.
Fix bug calling Dialog.show() while hide() fade-out is in progress, causing Dialog to be added to !DialogLevelManager stack twice.   Fixes #16152 !strict.

git-svn-id: 674a2d6b1e32e53f607eb824547723f32280967e@29836 560b804f-0ae3-0310-86f3-f6aa0a117693

kitsonk/delite,kitsonk/delite,harbalk/delite,Sam-Cummins/delite,harbalk/delite,Sam-Cummins/delite