SAML Identity Server only inserts one value in SAML Assertion when there are multiple attributess with the same name

SAML setup between NAM IDP server and 3rd party SAML2 SP
Attribute set defined with following

- constant value true -> remote attribute ConstantNumber1
- constant value true -> remote attribute ConstantNumber3

When the assertion is generated by the IDP server, we will only include one of
the two of these attributes.


Here's the attribute set that I defined in my setup here. ConstantNumber1 and
COnstrntNumber3 are both set to a value true. This is what I see in the
assertion

<saml:AttributeStatement><saml:
Attribute xmlns:xs="http://www.w3.org/2001/XMLSchema"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" Name="logouturl"
NameFormat="urn:oasis:name
s:tc:SAML:2.0:attrname-format:unspecified"><saml:AttributeValue
xsi:type="xs:string">**</saml:AttributeValue></saml:Attribute>
<saml:Attribute
xmlns:xs="http://www.w
3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
Name="Constant/ConstantNumber3" NameFormat="urn:oasis:names:tc:SAML:2.0:att
rname-format:uri"><saml:AttributeValue
xsi:type="xs:string">**</saml:AttributeValue></saml:Attribute></saml:AttributeStatement></saml:Assertion></samlp
:Response>


It only has constantNumber3. It seems to only populate the last constant if
multiple constants of the same value exist - regardless of format.