Okay... good news, my friends!
I recreated patreon.unlock.rpy from the webpage form (link from OP) and reinstalled it. Unlock works again now! Huzzah! I just tested it to unlock the new farm location and it worked perfectly!
So, for those of you who may have trouble getting the webpage format converted to .rpy format... here's the file zipped for travel. Unzip the file to reveal patreon.unlock.rpy and drop it into your game folder. Then play as usual. If asked to overwrite, allow it. It's the same file as the OP version. I just saved you the step of having to format it into .rpy.
Hope this helps you friends, Phat
PS: The patreon code at the church (for outfits) is still the same listed in dev notes on the OP as well. I didn't need to re-enter that code. But, the outfit selection was far better last update, IMHO... Adventure ever on, Phat