Moodle 4.5 and viewing sections

[joostelshoff]

A few things seem to happen in our Moodle 4.5 test instance when we set the course format to Designer (collapsed sections or flow) and try to access a section.

In our debugging info, we found the following:
line 157 of /course/format/classes/output/local/content/sectionselector.php: Error thrown
line 90 of /course/format/classes/output/local/content/sectionselector.php: call to core_courseformat\output\local\content\sectionselector->get_section_url()
line 83 of /course/format/designer/classes/output/courseformat/content.php: call to core_courseformat\output\local\content\sectionselector->export_for_template()
line 91 of /course/format/designer/classes/output/renderer.php: call to format_designer\output\courseformat\content->export_for_template()
line 84 of /course/format/classes/output/section_renderer.php: call to format_designer\output\renderer->render_content()
line 61 of /course/format/designer/format.php: call to core_courseformat\output\section_renderer->render()
line 348 of /course/view.php: call to require()

Is this because there's currently no version for Moodle 4.5, or is this something that could be solved in another way?