$ git clone -n https://src.fedoraproject.org/rpms/rust-ahash0.7.git /var/lib/mock/f45-build-40041-767/root/chroot_tmpdir/scmroot/rust-ahash0.7
Cloning into '/var/lib/mock/f45-build-40041-767/root/chroot_tmpdir/scmroot/rust-ahash0.7'...
$ git fetch origin c8ceaa11f6377c7731032eb314504178a3490622:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-ahash0.7
 * [new ref]         c8ceaa11f6377c7731032eb314504178a3490622 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at c8ceaa1 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild