Account's alias textbox loses focus on each keystroke

Issue generated from Tuleap's migration script. Originally submitted by: Samuel Sirois (ssirois)

Changing my alias this morning, the Alias textbox loses focus at each keystroke and focus is set to the "Search contact..." textbox.

The "Search contact" textbox stays empty and the character input is stored in the "Alias" textbox but I had to go back to the Account's Setting window after each inputed character.