Grouping with XDS: need to query with MPI-PID if we get an ERP-SPID from MHD #180
Description
MHD spec says that we need to quey by EPR-SPID, for XDS we need to query the MPID-PID out of the EPR-SPID
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MHD spec says that we need to quey by EPR-SPID, for XDS we need to query the MPID-PID out of the EPR-SPID