Grades don't persist reliably with restricted-access content

[pdpinch]

As first reported in this discussion post, we have found that grades are not persisted reliably for problems that have restricted access.

We merged a PR to address this problem, #33963, which reduces the frequently of the problem, but has not elminated it altogether.

We have documented steps to reproduce, including a minimal course, in this google doc.

[asadali145]

To add more clarity:

1. There is no issue with calculating or persisting the grades anymore. (Grades calculation was fixed in fix: fix _update_subsection_grades when restricted blocks are not cached #33963)
2. Currently, The only issue is how the calculated/persisted grades are displayed on the progress page or instructor grades reports.

There is an open discussion post with much more details about the multiple issues due to the caching of course blocks. We have also recommended a couple of fixes.

CC: @pdpinch