[0.4.11] [COMCTL32] button: Don't erase the area of the checkbox or the text.

[0.4.11] [COMCTL32] button: Don't erase the area of the checkbox or the text.
Attempt to fix the menace of the world, CORE-13278.
Note that this can also cause visual glitches for classic check boxes or
radio buttons.

This commit does not fix the flickering to 100%, but it does greatly reduce it.
I will watch out during release tests, whether anything is negatively impacted,
and if yes, I might withdraw the patch. Up to now I did not spot any problems.

cherry picked from commit 0.4.12-dev-347-g
75a80ec82309a19632251bfe6aa9e7f14132a86f