Having /gamerule mobgriefing true disables being able to throw villagers food as the can't pick it up and stops them from harvesting, leaving no way to breed them.
Linked issues
Comments 4
I disagree, this is specifically adressing the breeding, not the farming. This can be fixed without having them disobey the rule (by changing how breeding is triggered).
@unknown I ask you to reconsider, yes it is mentioned, but this report isn't reporting that, it's reporting that breeding becomes impossible.
Thank you for your report!
We're tracking this issue in MC-55218, so this ticket is being resolved and linked as a duplicate.
That ticket has already been resolved as working as intended, which means this is not considered a bug and won't be fixed. Please do not leave a comment on the linked ticket.
If you haven't already, you might like to make use of the search feature to see if the issue has already been mentioned.
Quick Links:
📓 Bug Tracker Guidelines – 💬 Community Support – 📧 Mojang Support
📓 Project Summary – ✍️ Feedback and Suggestions – 📖 Game Wiki