After #12517 likely

copy a bunch of lines, like

git cherry-pick 02135ed
git cherry-pick 27a1b9d
git cherry-pick f5f0712
git cherry-pick c0083ef
git cherry-pick 09e9915
git cherry-pick 0a15643

and paste em. You'll get the warning, fine. Allow the paste. Now copy some more lines like

git cherry-pick 5ba0d61
git cherry-pick c62705e
git cherry-pick 788d33c

and paste em. No warning, no paste. One at a time works fine. I'm betting the page is stuck thinking the dialog is open (it's not).

(I bet there are other ways of reproducing this too)