Yesterday we upgraded from 3.6.2 to Moodle 3.6.4 (Build: 20190513) and suddenly the Navigation block, the Course administration block and the Site administration block unfolds everything, making the Site administration block about 20 feet long...
We removed everything we had in Additional HTML, and tried the Clean theme, with the same result.
Is this a bug, or is there a setting I haven't manage to find?