Okey, so I did a bit dirty fix for this that if autocomplete popup is visible then blur doesn not tak an action, otherwise adds a new tag. Also added unique option to second blur (with autocomplete).
1. minChars
2. maxChars
Also fixed a bug (I hope so it was one) when using autocomplete, on pressing enter two tags were added:
1st : what we typed
2hnd : what autocomplete returned.