[MC-1606] Mobs unable to move in slabbed house

What I expected to happen was...:
In my house made 2 blocks high but with slabbed roof and floor to save blocks villagers would be able to move around like normal

What actually happened was...:
Villagers were unable to move as were zombies

Steps to Reproduce:
1. Create frame 3 high with a gap in middle (as seen in attached recreation pictures).
2. Place slab at bottom and upside down slab on top.
3. Walk trough

Related issues

duplicates

MC-21109 Pathfinding is fundamentally flawed (it strictly follows the grid)

Attachments

Comments

migrated 2012-11-01T14:58:54Z

[media][media][media]

CrusaderDeleters 2012-12-15T01:50:41Z

They don't follow this path because they think it's a completely full block. Same thing happens to Fences.

Tails 2012-12-25T19:45:32Z

Confirmed in 1.4.6.

qmagnet 2015-09-10T11:55:11Z

Confirmed for 15w36d

FaRo1 2016-06-12T16:49:32Z

Since a mod recently told me that reports can be marked as duplicates of newer ones if the newer one contains much more information/is more accurate/is better updated for every version, I think this should be done for this and MC-21109. Because it's caused by MC-21109.

kumasasa 2016-06-12T16:58:20Z

Thanks, done.