Description of problem:

Add Role with wrong permit id leads to 500 error ( see Additional Information ). I would expect proper error instead . 

Version-Release number of selected component (if applicable):


How reproducible:


Steps to Reproduce:
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Actual results:


Expected results:


Additional info:

[RHEVM shell (connected)]# add role --name aaa --permits-permit "permit.id=30" --administrative true

error:
status: 500
reason: Internal Server Error
detail: HTTP Status 500