We did not crash in the invalid memory access because the lists were
continuous in memory and we would just pick the next id. However it
crashed when trying to map some of the ids to non existant strings. This
commit also removes the need for the earlier fix for this bug that just
hit the problem behind some checks much later in the call chain.

Change-Id: Ic6658987815c4e84ed2449934c310e30dcd0ed4c