Using <tab complete> when there's text following the cursor is no longer inserting spurious text into the editbox. However, it's no longer doing a behavior that I'm not sure was accidental or intentional.

Previously, when you pressed <tab> when the cursor was not touching a word and text was not beyond the cursor, it would insert a nick from the nicklist.

It would also do the same thing when touching a comma, so you could build a comma delimited list of all nicks by alternating pressing of the <tab> and the <comma> keys.