Qt: do not trigger OnDropDown if combobox is disabled. issue #26676


git-svn-id: http://svn.freepascal.org/svn/lazarus/trunk@46129 4005530d-fff6-0310-9dd1-cebe43e6787f
LCL: TPairSplitterSide - published Constraints property. issue #26672


git-svn-id: http://svn.freepascal.org/svn/lazarus/trunk@46130 4005530d-fff6-0310-9dd1-cebe43e6787f