EDUCATOR-1043 | ZeroSubsectionGrade's graded/all_total should have a non-zero possible score where appropriate.

EDUCATOR-333: Grade each course subsection exactly once; ensure that our stashed, unsaved subsection grades are unique.

This reverts commit 5388d5d1.

This reverts commit 16e96365.

incoming scores.

TNL-6697

Don't persist when creating grades unless policy changed.

Add a new waffle switch that allows us to assume zero grades for
learners who have no entry previously recorded, and another to
disable persisting grades for unengaged learners.

TNL-6691

for TNL-6644

These checks are causing SQL query numbers to scale linearly with the
number of subsections being created/updated, and the errors they
check for have not been seen in prod.

TNL-6225

Remove deprecated SingleSectionGrader.  TNL-5987
Remove display_name and module_id from Scores objects
Update CourseGradeFactory.__init__ to not be user-specific
Update some callers to use CourseGrade class instead of "summary" dict
Remove no longer needed course_grades.py module.
Renamed django signal from GRADES_UPDATED to COURSE_GRADE_CHANGED

TNL-5886

TNL-5953

These lines are now being run in async tasks anyways, so we can remove this
decorator and rely on the async task to retry itself. Also cleans up a few
pylint violoations noticed in subsection_grade.py.

Tests have been updated to match new behavior.

The column is populated with the current timestamp when a passing grade
is persisted for the first time.  "Passing grade" is defined as having a
non-blank value for letter_grade.

TNL-5888

Will fall back to stored certificate grade if needed as we've discussed.

TNL-5314

* Centralize creation of quick request objects.
* Isolate caches to individual tests to prevent test ordering
  dependencies.

TNL-5811

Initial commit

TNL-5484

TNL-5835

Makes use of the new SUBSECTION_SCORE_CHANGED signal to trigger a task that
updates persisted course grade values. We've also renamed SCORE_CHANGED to
PROBLEM_SCORE_CHANGED to head off any issues with unclear signal names.

TNL-5740

TNL-5046

Includes:
* CAPA
* ORA
* LTI
* LTI-Consumer
* SGA
* Randomized Content Block

TNL-5692
TNL-5464

for TNL-5697

This reverts commit 9aa35cd8.

This reverts commit 0ea8e1b9, reversing
changes made to e3db08f1.

Potential Grades revert PR

This reverts commit 663fbbba, reversing
changes made to 3f7441c8.

This reverts commit c050ccc3, reversing
changes made to 9ba97722.