I confirm the bug. It’s been annoying me for the last 3 months.
It happens only on long URLs, once you click the address bar the URL seems to be fully selected but when you start typing a part of the URL remains. Sometimes the same URL (for example on another tab) gets selected and removed fully and sometimes a part of it remains.
It seems like the last non-asci character is the culprit.
Example
Link visited in the clip (added space after dots to avoid showing link preview in this post):
www . filmweb . pl/film/Klecha-2023-764385/discussion/2024+Filmu+brak+przez+spraw%C4%99+w+s%C4%85dzie,3432158
%C4% is the letter “ą” in Polish, notice that in the above clip this letter is rendered as “ą” in the address bar but when I copied the URL and pasted here it’s escaped.
Hope this helps.