Project: moodle
Issue MDL-47055: reimplement extra credit handling with natural weights.
See https://tracker.moodle.org/browse/MDL-46576 for the code to branch from, unless that issue has already been integrated. See the spec at https://docs.moodle.org/dev/Natural_weighting See https://github.com/MoodleGradebookWorkingGroup/moodle/compare/master...28_natural_weights for the original prototype implementation.
Story points: 8