One example of such a case:
/var/log/syslog /var/log/kern.log C panic C Oops W generic protection rip W .*Unrecovered read error - auto reallocate failed /var/log/kern.log C INFO
In the old implementation the line with C INFO would never be executed. Now it is appended at the bottom of the other patterns for kern.log.
Thanks to Gregor Hoffleit for the patch!