Fix importer for GitHub comments on diff
Closes #18240 (closed)
What does this MR do?
Fix importer for GitHub comments on diff after
LegacyDiffNote was extracted out from
Are there points in the code the reviewer needs to double check?
Why was this MR needed?
Comments on MR's diff that were imported from GitHub are not being shown.
What are the relevant issue numbers?
There are none.
Screenshots (if relevant)