SpamAssassin cache hit inherits original spam score?

[Tony Johansson]

We scan a number of different domains. Some have a required spam score
of 7 while most use 5.

The individual spam scores for the domains work as desired but seems to
fail at times if a spam is cached.

We've had examples where a domain that has set 5 as the required score
gets spam delivered with a header as this:
X-Svenskakyrkan-SpamCheck: not spam, SpamAssassin (cached, score=6.81,
required 7, BAYES_50 0.00, DCC_CHECK 2.17, URIBL_BLACK 3.00, URIBL_SBL 1.64)

Shouldnt the saved spam score be evaluated again when there is a cache hit?

Regards, Tony