Behavior change with header weeding in mutt 1.12.0

Apparently something changed with the way headers are displayed in the pager by default in mutt 1.12.0. Previously, only a handful of them were displayed (such as From, Date, To, Subject, Cc and perhaps a few others) and you could view the full details by pressing 'h' (bound to display-toggle-weed). After the update, all headers seem to be displayed, and 'h' only makes some minor change in line wrapping. This is a bit annoying since it means paging through several screenful of irrelevant noise to get to the actual message.

I could more or less restore the previous behavior by using example 3.10 in the docs. I had previously no ignore or unignore rules in my muttrc.

The release notes mention some changes with headers, but nothing seems directly relevant. It is unclear whether this is an intentional change or a side effect of the other header changes.