$ git clone -n https://src.fedoraproject.org/rpms/rust-moxcms.git /var/lib/mock/f45-build-43276-801/root/chroot_tmpdir/scmroot/rust-moxcms
Cloning into '/var/lib/mock/f45-build-43276-801/root/chroot_tmpdir/scmroot/rust-moxcms'...
$ git fetch origin b1572d999a6e5ecdb302b0d9fa4605c4495c063c:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-moxcms
 * [new ref]         b1572d999a6e5ecdb302b0d9fa4605c4495c063c -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b1572d9 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild