Shopping soft lock from buying bait from Willy

[Proven Paradox]

I just soft locked the game in Willy's shop. My inventory was full when entering the shop, and I had bait in my inventory (I was restocking crab pots at the docks, wanted to top off while I was there). I wasn't paying attention and accidentally bought 2 more bait over the maximum. I'm now stuck in a state where I can't do anything because the extra bait is stuck on my cursor. I can't sell anything because right clicking doesn't seem to work. I can't exit the shop, both escape and the red X button don't do anything. The only action I can take is to buy more bait or to switch out the bait on my cursor with one of the fish in my inventory (which I still can't sell). To break out I have to alt F4.

Repro is easy. Just go to Willy's shop with a full inventory that includes some bait. This is probably doable with any other item but it's easiest to see with Willy for bait. Then buy enough bait so that combining the stack on your cursor would put the stack in your inventory to 999 while still having some remaining in your cursor. You're stuck in place.

This should be easy to fix. Make it so you can right-click sell items while something else is on your cursor, or make it possible to close the shop with something on your cursor so you can trash/drop something.

---Additional info---
Able to reproduce: Yes, tested twice.
OS: Windows 10 Pro
Full screen: Yes

---Mods installed---
Console Commands 2.3 by SMAPI (not actively used, just so I could run SMAPI to load other mods)
Skill Prestige 1.2.3 by Alphablackwolf
Skipintro 1.7 by Pathoschild
UI Info Suite 1.3 by Cdaragorn