$ git clone -n https://src.fedoraproject.org/rpms/group-service.git /var/lib/mock/f40-build-796905-140981/root/chroot_tmpdir/scmroot/group-service
Cloning into '/var/lib/mock/f40-build-796905-140981/root/chroot_tmpdir/scmroot/group-service'...
$ git fetch origin 7372c5a8c94dabd196d124c51890773c0f12cede:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/group-service
 * [new ref]         7372c5a8c94dabd196d124c51890773c0f12cede -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 7372c5a Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild