$ git clone -n https://src.fedoraproject.org/rpms/rust-version-compare.git /var/lib/mock/f45-build-46041-830/root/chroot_tmpdir/scmroot/rust-version-compare
Cloning into '/var/lib/mock/f45-build-46041-830/root/chroot_tmpdir/scmroot/rust-version-compare'...
$ git fetch origin 6264f6b57e3ca2bda4d58ffd81e16ab4c17c77ce:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-version-compare
 * [new ref]         6264f6b57e3ca2bda4d58ffd81e16ab4c17c77ce -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 6264f6b Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild