Stripping leading/trailing spaces in relational draft

Hi folks,
One of the questions raised during the WGLC of 
draft-ietf-sieve-3431bis-01.txt was concerning the following text in the 
draft:
>3.1.  Match Type Value
[...]
>   Leading and trailing white space MUST be removed from the value of
>   the message for the comparison.  White space is defined as
>
>       SP / HTAB / CRLF

I would like to poll people who've implemented the relational draft/RFC 
if they've been following this rule.
Thanks,
Alexey