NEW ISSUE: What does 'have a mustUnderstand attribute' mean?

Title: What does 'have a mustUnderstand attribute' mean?

Description:
Lines 270-272 talk about wsrm:Sequence having a mustUnderstand attribute 
  to ensure that the RMD understands it. What it really should say is: 
have a mU attribute with a value of '1/true'.

Justification:
Lines 270-272 in [1] say:
"... The <wsrm:Sequence> element MUST have a mustUnderstand attribute 
from the namespace corresponding to the version of SOAP to which the 
<wsrm:Sequence> SOAP header block is bound."

Having a mU attribute does not ensure that the RMD will understand the 
SOAP header, since the value of the attribute can be '0/false'.

Target: core

Type: editorial

Proposal:
Change it to say: "... mustUnderstand attribute with a value of 1/true ..."

Related issues: none

[1] 
http://www.oasis-open.org/apps/org/workgroup/ws-rx/download.php/14548/wsrm-1.1-spec-wd-03.pdf