Use when getting list of possible answer variables.
and use logged values for matches to student definitions. This greatly speeds up open-problem and removes issues with timeouts and truncated server replies on open-problem.
This is a work-around for bug #1934. (cherry picked from commit e0a913f)
This is a work-around for bug #1934.
Bug Introduced March 1, 2012, commit 8ea61fa Fix bug #657: check-err-correct-var includes variables not in solution. Adjust help-button-hint-test to be same as before floundering was altered. Split up json object in php script as work around for corruption bug.