HANA XS sends Edm.Int64 as a number not a string in JSON - breaks OData protocol

Hi,

I'm having an issue where the XS interface of a table is sending an Int64 value as a number not a string.

value is appearing in OData feed as:

"d":{"results":[{"__metadata": {"uri":"https://xs01_myaccount.hana.ondemand.com:443/myapp/services/signupmodel.xsodata/signup('<number>')","type":"myapp.services.signupType"},"USER_TYPE":1,"USER_COUNTER":32},{"__metadata": {"uri":"https://xs01_myaccount.hana.ondemand.com:443/myapp/services/signupmodel.xsodata/signup('<number>')","type":"myapp.services.signupType"},"USER_TYPE":3,"USER_COUNTER":1}]}}

where meta data has

<PropertyName="USER_COUNTER"Type="Edm.Int64"/>

The problem is this line in the OData V2 spec:

VJsonInt64    = quotation-mark int64Literal quotation-mark  int64Literal = ; see section 2.2.2

An Int64 is supposed to be contained within quotation marks - but XS is not doing this!

Any suggestions on how to fix this behaviour?

Thanks!

Chris