Fix bug #15611108 Stability: CursorIndexOutOfBoundsException in Settings: Index -1 requested, with a size of 1

- do not allow to have position < 0

A use case was generated by the Monkeys where they were capable to click on the Header.

Change-Id: I3a8ded4c1471a1589134826539c9db1b551f49dd
1 file changed