$ git clone -n https://src.fedoraproject.org/rpms/rust-seize.git /var/lib/mock/f45-build-44740-816/root/chroot_tmpdir/scmroot/rust-seize
Cloning into '/var/lib/mock/f45-build-44740-816/root/chroot_tmpdir/scmroot/rust-seize'...
$ git fetch origin 6adcf993e2c87da76c6d3d98c478d69d43b4ff7c:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-seize
 * [new ref]         6adcf993e2c87da76c6d3d98c478d69d43b4ff7c -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 6adcf99 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild