Manual sweep of !28252 from 21.3 to master: Use only diff-root in regression test. Fixes ATLASSIM-4346
Use only diff-root in regression test. Fixes ATLASSIM-4346
See merge request !28252 (merged)
(cherry picked from commit 97ba4ff0)
7d75efe8 Use only diff-root in regression test. Fixes ATLASSIM-4346