Bats spawn when mob spawning is false

Is this still a concern in the current Minecraft version? If so, please update the affected versions in order to best aid Mojang ensuring bugs are still valid in the latest releases/pre-releases.

(Automatic Message)

Unable to reproduce in 1.6.2.

sorry but that happens in spanpshot 14w07a.
happens in dark structures, i kill one and instantly spawns another.