If you place a block under fence gate, there is a rendering bug.
If you break the block, everything is normal, look at the screenshots
Without a block under the fence gate
http://i.imgur.com/W59Ly.png
With a block under the fence gate
http://i.imgur.com/mI5nw.png
Linked issues
duplicates 1
Comments 4
nope, that's not https://mojang.atlassian.net/browse/MC-38
look at the screenshots
Actually "[Mojang] Grum (Erik Broes) added a comment - 24/Oct/12 9:22 PM
Fixed, they all look like the ones on the 'North'/'South'. Also fixed the missing faces."
It's not excatlly like MC-38, but looks like the cause is the same.
I suggest waiting for the next snapshot to see if it's fixed. If not, you can submit again or ask to reopen.
Sounds like MC-38 to me, if that is the case, it's fixed for the next version