Where “stamps” is a Group field, and “local” is a True/False sub-field of it. I tried following the same method as with repeaters, but it doesn’t seem to be working. It returns no results. Is it possible to do a meta_query on such sub-fields ?
What do I do if my group field’s slug has an underscore in it ?
I mean, I could just change it to make it “my-group-field” instead of “my_group_field”, but it is in your system that when I write a field’s name with spaces, it replaces them with underscores, so that’s a shame.