$ git clone -n https://src.fedoraproject.org/rpms/openvswitch.git /var/lib/mock/f40-build-740464-109672/root/chroot_tmpdir/scmroot/openvswitch
Cloning into '/var/lib/mock/f40-build-740464-109672/root/chroot_tmpdir/scmroot/openvswitch'...
$ git fetch origin 59e7a54dd0cd2d581c9da856f53d4f95c903fe04:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/openvswitch
 * [new ref]         59e7a54dd0cd2d581c9da856f53d4f95c903fe04 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 59e7a54 Update to 3.2.1