Most of my Trello cards don't need checklists. I used to add them manually as needed. Now, whenever I create a new card on the website, it automatically adds a blank checklist called "Checklist". I've searched through the settings but I can't see any way of controlling this behaviour. The mobile app still doesn't add checklists unless you add them yourself.
At the moment I have to delete the checklist from every card when I create it. Is there a way to revert to the old behaviour?
EDIT 1
I've just added a card to my work Trello, and it didn't add a checklist. The difference between my work and personal Trellos is that I had set up my personal one with a team, but not my work one. I've just created a team for my work Trello and added the board to it, but I don't have a need to create another card just yet. I'll see what happens next time.
Best Answer
I've just received a reply from Trello support:
So basically, it was an A/B test, and I was in the B group. Those with accounts in the A group couldn't replicate the issue because they were in the control group.
EDIT - 8 May 2018
I sent a follow-up email on 5 May 2018 because the checklists were still being applied automatically. Here is the reply:
I've tested this method, and it works. Note that as they said, you'll have to do this in every browser you use Trello on.