hpcc-systems/HPCC-Platform — pull request #2285 by jakesmith (2012-05-14 16:39:31+00:00)
Title: Fix issue with childif and graph progress

The time stat. collection for a child if activity was causing an exception,
if connected to anything other than the 1st input

Also fix potential race in progress collection in join and diskread

Signed-off-by: Jake Smith