$ git clone -n https://src.fedoraproject.org/rpms/rust-szip.git /var/lib/mock/f40-build-2717024-72722/root/chroot_tmpdir/scmroot/rust-szip
Cloning into '/var/lib/mock/f40-build-2717024-72722/root/chroot_tmpdir/scmroot/rust-szip'...
$ git fetch origin 46c660a5f9410afb3b849de8c69a25bb81845357:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-szip
 * [new ref]         46c660a5f9410afb3b849de8c69a25bb81845357 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 46c660a Use rust2rpm 26 features to reduce manual packaging effort