Broken CIDR: no fix in 7.4.6?

As been said, in 7.4.5 CIDR data type has been accepted values with
non-zero bits to the right of >24-bit mask:

http://archives.postgresql.org/pgsql-bugs/2004-10/msg00081.php

In CVS head src/backend/utils/adt/network.c (1.54) has a fix by Bruce,
but 7.4.6 still has 1.47.2.1 with no fix.

I wonder if I can safely use diff -r1.53 -r1.54 .../network.c to patch
7.4.6 sources...


--
Fduch M. Pravking