$ git clone -n https://src.fedoraproject.org/rpms/xzgv.git /var/lib/mock/f45-build-39179-732/root/chroot_tmpdir/scmroot/xzgv
Cloning into '/var/lib/mock/f45-build-39179-732/root/chroot_tmpdir/scmroot/xzgv'...
$ git fetch origin 43063c5c6b26467dce7de7ec962a37a342134eef:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/xzgv
 * [new ref]         43063c5c6b26467dce7de7ec962a37a342134eef -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 43063c5 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild