saml:Attribute question

In SAMLCore section 
3.3.2.3 Element <AttributeQuery> (lines 1863-1864), we specify 
that

  A 
  single query MUST NOT contain two <saml:Attribute> elements with the 
  same Name and
  
  
NameFormat values (that is, a given attribute MUST be named only once in a 
  query).

However, in section 
2.7.3 Element <AttributeStatement> we do not discuss the rules or 
interpretation regarding inclusion of more than one <Attribute> 
element with identical Name and Format attributes in a single 
<AttributeStatement> (or in two or more <AttributeStatement> 
elements within the same <Assertion> or within different <Assertion> 
elements in the same <Response>).

 

Any thoughts on what 
this does/should mean in a response to an AttributeQuery?

 

Thanks,

Ari