Wrong tooltip at Tab title in particular case

Hi, all.

I found wrong tooltip at Tab title in particular case.

How to reproduce(Ver7.1 latest):

Step1: select a record that is over 30 characters at tab.
Step2: select a record that is less 30 characters at tab.

Ref: https://groups.google.com/forum/#!topic/idempiere/aXKolKjXKhQ