$ git clone -n https://src.fedoraproject.org/rpms/rust-cookie_store0.20.git /var/lib/mock/f45-build-40971-778/root/chroot_tmpdir/scmroot/rust-cookie_store0.20
Cloning into '/var/lib/mock/f45-build-40971-778/root/chroot_tmpdir/scmroot/rust-cookie_store0.20'...
$ git fetch origin d8336bd1828c041f09fdeb4c4ba77d7938e2d313:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-cookie_store0.20
 * [new ref]         d8336bd1828c041f09fdeb4c4ba77d7938e2d313 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d8336bd Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild