mozilla-b2g/gaia — pull request #5803 by ttaubert (2012-10-13 20:26:03+00:00)
Title: Bug 796488 - [Contacts] The selection list won't show up after press Add Picture field in the first time

https://bugzilla.mozilla.org/show_bug.cgi?id=796488#c9

"Locking the screen causes a LM.hide() call which registers a "transitionend" listener. There is no transition so the handler stays registered until LM.show() is called. A transition occurs and the class 'visible' is removed."