Top level content blocks start collapsed. Content blocks with errors and their parents are expanded on save all/publish.
1.5.2
TextField uses models.TextField to store data in the db the avoid character limits. Save all and publish only expand collapsed content blocks if the form contains errors.
1.5.1
Python 12 support. Bugfix editable title colour in light mode.
1.5.0
Iframe field added. Content block titles can now be edited in the content block editor.