$ git clone -n https://src.fedoraproject.org/rpms/rust-predicates2.git /var/lib/mock/f45-build-43945-809/root/chroot_tmpdir/scmroot/rust-predicates2
Cloning into '/var/lib/mock/f45-build-43945-809/root/chroot_tmpdir/scmroot/rust-predicates2'...
$ git fetch origin 8bc7525a330c54914d30ded6e10bc65e76f43089:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-predicates2
 * [new ref]         8bc7525a330c54914d30ded6e10bc65e76f43089 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 8bc7525 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild