My limited interaction with them so far seems to show them working normally. I found a village and immediately started to tear it down to rebuild it the way I wanted it (i.e., as an iron golem farm). As I was ripping out the gardens, all the farmers started coming over and trying to plant into the dirt.
I haven't yet built a villager-powered auto-farm, so I dunno if they eventually get stuck. They did fix the bug where they would stand fixated, looking at a carrot on the ground if their inventories filled up.
Are farmers currently broken? My guys are not planting or harvesting.
I replaced them with the new villagers and it worked like a charm after the conversion. However, there is a bug. Brown-coated villager will share wheat/ beet SEEDS with the other brown-coated villager.
The Meaning of Life, the Universe, and Everything.
You will need to replace them with the new villagers and hungry villagers which I forgot to mention earlier. Either you want to do it and deal with only one problem if it doesn't affect your auto farms -or- wait for the next fixes.
Make yourself useful and report bugs at bugs.mojang.com. There are some exisiting tickets you can make a comment about it. It would help push bug fixes especially conversion issue as of right now.
Farmer behavior may have something to do with the conversion. Who knows. Good luck.
I am also seeing a converted world (XO to BTU then up to a Realm) that has my converted browncoats wandering around a farm and not doing anything about it. About half the other villagers also have no trading popup when clicked upon.