$ git clone -n https://src.fedoraproject.org/rpms/rust-quick-error.git /var/lib/mock/f45-build-44183-811/root/chroot_tmpdir/scmroot/rust-quick-error
Cloning into '/var/lib/mock/f45-build-44183-811/root/chroot_tmpdir/scmroot/rust-quick-error'...
$ git fetch origin 1270544a2a16b99110994070de472097195118b3:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-quick-error
 * [new ref]         1270544a2a16b99110994070de472097195118b3 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 1270544 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild