FAIL: t1007-exclude.t 5 - excluding a node with reservations works

[garlick]

As @grondo notes in #316, this test intermittently fails

FAIL: t1007-exclude.t 5 - excluding a node with reservations works

expecting success: 
    adjust_session_info 4 &&
    flux module remove sched &&
    flux module load sched sched-once=true node-excl=true plugin=sched.backfill &&
    timed_wait_job 5 submitted &&
    flux submit -N 4 sleep 0 &&
    flux submit -N 4 sleep 0 &&
    flux submit -N 4 sleep 0 &&
    flux submit -N 4 sleep 0 &&
    timed_sync_wait_job 10 &&
    flux wreck exclude -k cab1235 &&
    state=$(flux kvs get -j $(job_kvs_path 7).state) &&
    test ${state} = "complete"
submit: Submitted jobid 7
submit: Submitted jobid 8
submit: Submitted jobid 9
flux-waitjob: waitjob_cb: completion notified
submit: Submitted jobid 10
not ok 5 - excluding a node with reservations works

He asks

Is this just a race condition when jobs complete before the test script reaches timed_sync_wait_job?