The objc reference handling has bug on assigning different refnum to the same ios object. The reason for this is that the RefTracker _refs is not properly initialized thus incorrect reference check in assignRefnumAndIncRefcount. Change-Id: Id86423dcf378d11e9056bf7c7ecb646333a94a04 Reviewed-on: https://go-review.googlesource.com/21120 Reviewed-by: Elias Naur <elias.naur@gmail.com>