CORE-14058 Regression: "Lock the taskbar" does not longer visualize its status at all, neither via radio-button nor checkmark

0.4.8dev-232	affected - shows nothing
0.4.7final	affected - shows nothing
r76032		affected - shows nothing
r75565		affected - shows nothing
r75320		affected - shows nothing
r75313		affected - shows nothing  GUILTY [EXPLORER] CTrayWindowCtxMenu: Use Shell_MergeMenus in QueryContextMenu and respect its parameters. by gadamopoulos
r75312		ok - uses checkmark - perfect
r75307		ok - uses checkmark - perfect
r75294		ok - uses checkmark - perfect
r75263		ok - uses checkmark - perfect
r75000		ok - uses checkmark - perfect