$ git clone -n https://src.fedoraproject.org/rpms/tbb.git /var/lib/mock/f40-build-788593-135267/root/chroot_tmpdir/scmroot/tbb
Cloning into '/var/lib/mock/f40-build-788593-135267/root/chroot_tmpdir/scmroot/tbb'...
$ git fetch origin 9a93cd656e4afa03a8d479869f060750f9581318:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/tbb
 * [new ref]         9a93cd656e4afa03a8d479869f060750f9581318 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 9a93cd6 Bump %release because -4 has already been built