From Roel Aaij: Fix in TGButtonGroup::ReleaseButtons related to the following case: if a button group contains check and radio exclusive buttons, any click on a check button made the selected radio button unselected.
From Roel Aaij:
Fix in TGButtonGroup::ReleaseButtons related to the following case:
if a button group contains check and radio exclusive buttons, any click
on a check button made the selected radio button unselected.


git-svn-id: ecbadac9c76e8cf640a0bca86f6bd796c98521e3@19280 27541ba8-7e3a-0410-8455-c3a389f83636

dawehner/root,bbannier/ROOT,bbannier/ROOT,dawehner/root,bbannier/ROOT,bbannier/ROOT,bbannier/ROOT,dawehner/root,dawehner/root,bbannier/ROOT,dawehner/root,dawehner/root,dawehner/root,bbannier/ROOT,dawehner/root