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 Note
.
Are there points in the code the reviewer needs to double check?
No.
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)
Not relevant.