Description of problem:
It throws an exception while creating a bug with non-exist component by xml-rpc

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


How reproducible:


Steps to Reproduce:
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Actual results:
{'fault_code': -32000,
 'fault_string': 'Can\'t call method "sub_component_count" on an undefined value at /var/www/html/bugzilla/extensions/SubComponents/Extension.pm line 931.\n'}

Expected results:
{'fault_code': 51,
 'fault_string': "There is no component named 'bne-test' in the 'Bugzilla' product."}

Additional info: