MY compiled rules don't show up in -D logs

[hg user <me...@gmail.com>]

I try to ask again the question with a more specific message.

I have a quite standard rule:
body        __ZIMBRA_03  /webmail|loss of email|(omissis)/i

I compile the rules. When I test with spamassassin -D -t msg the rule is
listed in the subtests list among the others but spamassassin doesn't list
how it fired.
I need to modify the rule so spamassassin understands it changed from the
compiled one and it lists it:
dbg: rules: ran body rule __ZIMBRA_03 ======> got hit: "Centro assistenza
informatica"

Can anybody tell me why?
Thank you
Francesco