$ git clone -n https://src.fedoraproject.org/rpms/junit5.git /var/lib/mock/f40-build-2263666-54535/root/chroot_tmpdir/scmroot/junit5
Cloning into '/var/lib/mock/f40-build-2263666-54535/root/chroot_tmpdir/scmroot/junit5'...
$ git fetch origin 6dd7ddf550ea4ec93ae81ebb3b68696ea9fbc99e:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/junit5
 * [new ref]         6dd7ddf550ea4ec93ae81ebb3b68696ea9fbc99e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 6dd7ddf Update javapackages test plan to f40