$ git clone -n https://src.fedoraproject.org/rpms/xmlindent.git /var/lib/mock/f45-build-38961-730/root/chroot_tmpdir/scmroot/xmlindent
Cloning into '/var/lib/mock/f45-build-38961-730/root/chroot_tmpdir/scmroot/xmlindent'...
$ git fetch origin a402e8ab1ee77221cf167b64917283cfe46c9a04:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/xmlindent
 * [new ref]         a402e8ab1ee77221cf167b64917283cfe46c9a04 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a402e8a Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild