`e->store_status != STORE_ABORTED'

[Ernst Heiri]

A few hours after the installation of Squid 2.1p2 there was a core dump 
and I found the following entry in the 'squid.out' file:

   client_side.c:1209: failed assertion `e->store_status != STORE_ABORTED'

There was no special message in either 'cache.log' or 'access.log'

Configuration:
        Squid 2.1p2 (no additional patches)
                --enable-cache-digest

        Solaris 2.6 on a Ultra E4000

Is somebody familiar with this behavior?
What is the reason and what can I do against?

Ernst