Symptom:
Modify job with sacmd to change from an agent to an agent list OR from an agent list to an agent results in error:

exception:java.lang.UnsupportedOperationException: -h and -g cannot be specified
 simultaneously.

Conditions:
Repro:
1.  Create a new job in tidal java client or web client assigning an agent list.
2. run sacmd to modify the job to change it to an individual agent:

SACmd>modrule -a 2 -h "ia-tac-tes61pm"
exception:java.lang.UnsupportedOperationException: -h and -g cannot be specified
 simultaneously.

Similarly using sacmd to modify a job from an individual agent to an agent list fails:

SACmd>modrule -a 2 -g "ValerieWinAgentList"
exception:java.lang.UnsupportedOperationException: -h and -g cannot be specified
 simultaneously.