Check in the unit test that makes sure TRQ-2001 is functioning as desired - failing after 10 retries at most. It will retry if it fails and gets the errno of EINTR.
TRQ-1943. Make it so that exec_bail no longer contacts sisters that never successfully joined the job.
Fix a problem in my TRQ-1943 fix. Make sure that sisters_contacted isn't null before attempting to derefence it.