>
>If the cache just blows away the cached base page it was using when one of
>these errors occurs, that should Do The Right Thing even without seed.
I see some concurrency issues and race conditions if the cache would simply 
blow away the cached base page, just in case that two
different concurrent requests are using the same base page and only one of them 
suffers from the checksum clash.

I think using a random seed per request would indeed be a safer approach to 
handle the manual retry scenario 

Nevertheless, the chance on failure should indeed be reduced by using a 
stronger hash.

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