$ git clone -n https://src.fedoraproject.org/rpms/catdoc.git /var/lib/mock/f45-build-5191-338/root/chroot_tmpdir/scmroot/catdoc
Cloning into '/var/lib/mock/f45-build-5191-338/root/chroot_tmpdir/scmroot/catdoc'...
$ git fetch origin 72d15f54bb87ef875c468e7941dc319a0b362a88:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/catdoc
 * [new ref]         72d15f54bb87ef875c468e7941dc319a0b362a88 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 72d15f5 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild