$ git clone -n https://src.fedoraproject.org/rpms/ghc-cmark.git /var/lib/mock/f40-build-776404-128831/root/chroot_tmpdir/scmroot/ghc-cmark
Cloning into '/var/lib/mock/f40-build-776404-128831/root/chroot_tmpdir/scmroot/ghc-cmark'...
$ git fetch origin 5e344c5323b063c1295294c8a915e61ec999547d:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ghc-cmark
 * [new ref]         5e344c5323b063c1295294c8a915e61ec999547d -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 5e344c5 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild