MR Diffs Refactor Part 01: Backend changes.

Fatih Acetrequested to merge
_mr-refactor-part-1 into _mr-refector-review-target

Backend changes for MR Diffs refactor.

/cc @smcgivern @felipe_artur @timzallmann

Related with #42882 (closed)

Edited by Fatih Acet

Merge request reports