Enable filtering <select> lists.
Enable filtering <select> lists.

Fix a bug where the filter text could not be deleted,
and another where filtering changes the checked item,
so that filtering <select> lists can be reenabled.

xorware/android_frameworks_base,xorware/android_frameworks_base,xorware/android_frameworks_base,xorware/android_frameworks_base,xorware/android_frameworks_base,xorware/android_frameworks_base