Too Easy to Remove Tags in Posts - Is this Adjustable?

When entering tags on my posts, the backspace button now deletes not only the text of the tag I'm currently typing but it also quickly deletes the previous tags.  Is this adjustable? I just had to recreate all my tags because the backspace deleted way more than just what I was typing for the new tag. Hopefully this makes sense.

It would be much better to require a click of the x to remove a tag or at least to have a pop up ask if I really want to remove a finished tag.