WhisperSystems/TextSecure — pull request #2041 by tinloaf (2014-10-26 22:27:15+00:00)
Title: Reset query string when search is collapsed

At the moment, when you search in the conversation list, and then tap "back" either on your phone's buttons or in the action bar, the filter stays active. Only way to reset the filter is to search again and input the empty string.