C2MS11 — Clarify Correlation PUBLISH-RATE and SAMPLE-RATE on Mnemonic Value Request Message

In Mnemonic Value Request Message, there is a PUBLISH-RATE and there is a SAMPLE-RATE that can be specified for each MVAL. The correlation between these is somewhat open to interpretation. For example, the text of the SAMPLE-CRITERIA, associated with SAMPLE-RATE, says it drives "when data should be provided" which overlaps with the PUBLISH-RATE. If taking SAMPLE-RATE to be independent of PUBLISH-RATE, it means something else entirely.

The supporting text of the Mnemonic Value Request Message needs to make clear how these interact.

Note that we previously determined to remove SAMPLE-RATE due to perceived overlap, but have since decided to leave it in place and make clear its usage.