$ git clone -n https://src.fedoraproject.org/rpms/php-zstd.git /var/lib/mock/f41-build-808588-145929/root/chroot_tmpdir/scmroot/php-zstd
Cloning into '/var/lib/mock/f41-build-808588-145929/root/chroot_tmpdir/scmroot/php-zstd'...
$ git fetch origin cbb2566d415fb98ac4998ed5a22d404503fea303:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/php-zstd
 * [new ref]         cbb2566d415fb98ac4998ed5a22d404503fea303 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at cbb2566 drop 32-bit support