fix: don't change the topmost value of child windows #5330
Merged
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Changing the topmost value of a non-top-level window on Windows will cause the top-level window to have its value changed too. This would cause bugs when manually setting the topmost status on a window by right-clicking in the notebook and opening a dialog (e.g. the select-channel dialog), which would try to disable the topmost value (as the setting isn't set).
This should only affect Windows as we don't use Qt there, but might be good to test on other platforms as well.