Prevent multiposting a comment

[Lauloque]

I discovered a new thing while posting a comment on Remove Strength from the Bump node ⁠— Right-Click Select

I often use ⎈ Ctrl⏎ Enter to post comments.
But when posting this one: my finger bounced on enter twice, and so the ⎈ Ctrl⏎ Enter shortcut was technically sent twice, and the comment got posted twice.

I think there needs to be a user-input blockage similar to the one on the Comment button: it can't be hit again after being hit.