Properly save suggestions in project exports
Previously imports would fail if a merge request note included a
suggestion with an
ActiveRecord::HasManyThroughCantAssociateThroughHasOneOrManyReflection
exception.
This was happening because suggestions were listed as a descendant of
merge requests, but this doesn't work because suggestions are directly
associated with notes, not merge requests, and that association is lost.
Rails also disallows creating intializing a has_many association through
a different object.
We fix this by making suggestions a child of notes within a merge
request. This doesn't fix previously broken exported project exports,
but new exports will work.
Edited by 🤖 GitLab Bot 🤖