[1.1.21] Request GUI will not close with Enter in all cases

[_Shin_]

In the set request window, usually i'll click an item request, I'll highlight the minimum quantity, type 500, tab, 500, enter, enter. My min and max are both 500 and the set request window is closed.

However, if I only want to change the max if I click to the right of the number 500 and hit backspace to go back to 50 and hit enter, enter the window will not close and am not activating the check mark. If I'm standing next to a train, i'll board or disembark the train depending on my position at the time. (if I highlight the 500 and overtype 50 and hit enter, enter the window will close normally)

Small issue, but something I've done mistakenly several times now.

[KeepResearchinSpoons]

(adding ref link only)
Not very sure but this one from long before might be tightly related to the loosing focus issue.

[invisus]

Sounds related to or duplicate of 95845