See my last comment on the bug. Sorry.
If you can explain why it's needed I'll happily click ship it.
This fixes the issue for me, but it feels like we should make the fix in plasma-framework to the button itself so everyone gets the benefit of the fix automatically, no?
@davidedmundson Given your comments in https://bugs.kde.org/show_bug.cgi?id=407460, can this go in?
So, what shall we do?
Based on @davidedmundson's comments in the bug report I think we can do this?