the bug is zombie pigman. they seem differant..

What I expected to happen was...:
1. not be killed in 3 hits in full iron armor set
2. let them blow off some steam and try at it agan
NOT hitting the pigman this time...

What actually happened was...:
1. killed nearly instantly, 2 hits un-armored 3 hits to someone armored in full iron
2. no longer lose the "gurdge" they have on you. they always seem to want to swarm you. and causeing others even in far distant areas
to attack

Steps to Reproduce:
1. build a neather portal
2. attack a pigman
3. never be allowed to go to the nether agan