$ git clone -n https://src.fedoraproject.org/rpms/rust-radium.git /var/lib/mock/f45-build-44211-811/root/chroot_tmpdir/scmroot/rust-radium
Cloning into '/var/lib/mock/f45-build-44211-811/root/chroot_tmpdir/scmroot/rust-radium'...
$ git fetch origin 9d37b99e595ed9864bce8c542505fa4b8e7be6ee:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-radium
 * [new ref]         9d37b99e595ed9864bce8c542505fa4b8e7be6ee -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 9d37b99 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild