Confirmed on my SSP world. I think it only happens on 1.7 created worlds or older. Actually playing 1.8.
I think this is anoying... at less for me
Not fixed at all for 14w31a, other mobs continie spawning but less agressive than before.
Fixed for 14w31a!
still in 14w29b
still in 14w28b...
Confirmed in w28b
still in 14w10a
so... the bug is that in 1.7.X and after, these blocks were transparent by error? I don't see any meaning to sofocate in leaves...
It continues on today's snapshot, 14w03a. I'll revise if it continues on futures snapshots.
Confirmed in 1.8.1 pre-release 1