It's a known bug, goodness knows enough people have mentioned it so far, and it will be coming in 0.8.3 from what I've heard.I can but I run a server with people who don't often play with mods and while we will update the pack, I figured the pack author would like to know that issue exists so they could upgrade it for everyone. As far as I know, golems are the ONLY way to automate harvesting crops and given it's such a central part of the pack (harvesting), it's in everyone's best interest to change to reallow that.
On another note though, I hear buildcraft robots are able to automate harvesting them, and potentially forestry multi-farms too, though I don't personally have the experience with them to say