User search in non-admin removes search header/input

just a wrong selector that removes the search field after completion, can be annoying if a username isn't found

![screenshot from 2013-09-12 16 09 43](https://f.cloud.github.com/assets/452811/1132149/defd9568-1bc5-11e3-9563-84390899b8f5.png)

![screenshot from 2013-09-12 16 10 05](https://f.cloud.github.com/assets/452811/1132150/defce38e-1bc5-11e3-94e8-e9118f8b5439.png)