On your examples where is your cursor? I also tried to replicate what you are experiencing on Firefox and IE and Pale Moon and as long as my cursor stays in the cut/paste box and not onto the suggestions (even after you click paste-make sure your cursor is not touching suggestions) then it pastes the appropriate word. It almost sounds like your cursor is not recognizing the cut/paste box and clicking on the auto suggest though I've no idea why that would happen. Are you using your cursor to click paste or are you using the arrow keys and enter to select paste? I guess I've reached the end of my knowledge to help. Especially as it is happening with 2 different browsers. I'd say reload the browser (saving your bookmarks, etc) but if it's on both FF and IE then I'm mystified.
posted by thobby 2 years and 3 months ago Link