TEST :model groups (ALL) : 2 particles with idendical element declarations (different type), one under 'choice', one under 'choice' inside 'sequence' of 'choice'
http://www.w3.org/TR/2004/REC-xmlschema-1-20041028/#Model_Groups
| Item | Value | 
|---|---|
| title | mgR021 - mgR021 | 
| name | mgR021 | 
| source | ../mgR021.xsd | 
| schemaName | ../mgR021.xsd | 
| keywords | schema negative | 
| package | javasoft.sqe.tests.modelgroups.mgr021 |