Port to the local file kcm to qqc2, no visual and functional change
I ran into the same issue before but was also unable to fix it. The qqc2 menu does not show the shortcut, while the Qt.labs.platform menu does not show the icon. Will probably dedicate again some effort to it next as it is the only remaining component which is qqc1.
In general I think this behavior should be controlled globally rather than determined by each app or even each scrollview (that just makes everything inconsistent). But you're right, it's unrelated to this patch and should not be changed here.