$ git clone -n https://src.fedoraproject.org/rpms/golang-github-sergi-diff.git /var/lib/mock/f38-build-side-42-init-devel-693029-26894/root/chroot_tmpdir/scmroot/golang-github-sergi-diff
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-693029-26894/root/chroot_tmpdir/scmroot/golang-github-sergi-diff'...
$ git fetch origin 21291cf74624dfd2471763b2d8f0c4ab7696a099:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/golang-github-sergi-diff
 * [new ref]         21291cf74624dfd2471763b2d8f0c4ab7696a099 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 21291cf Rebuilt for https://fedoraproject.org/wiki/Fedora_38_Mass_Rebuild