Subject: Issue i013: better description?
Mostly an editorial aspect, but could create confusion w/r to future resolution of your issue:
I find the description of i013 a bit inaccurate: it merely summarizes the solution proposed in the proposal section, instead of stating what the real issue is:
define a policy assertion that defines the highest message number the RM destination will accept.
Would that be OK (meaning aligned with your intent) if you reworded it as:
There is no common way to communicate to an RM Source the highest message number the RM destination will accept, in case it is lower than the maximum authorized in the specification.