[4.17.2] How do you get the PlayerController's Current Focus?

Ive been trying to set up a textbox with which the player can rename items.
It mostly works. The only problem is that the first mouse click after the player confirms or cancels text entry doesn’t work.

It seems minor but can become a persistent annoyance to players and I would like to fix it.
I am assuming there is an issue with how User Focus is set when text entry ends, so I was trying to find a way to track what the User Focus actually was at certain points.
But I can’t seem to find a Blueprint Node for that. Is there a way to do this?