[Dovecot] Is '*:bytes=" quota specification the quota 'Value', or 'Limit'?

Docs for quota configuration

http://wiki2.dovecot.org/Quota/Configuration#Limit_configuration

state that the 'bytes=' specification defines the quota **LIMIT**

"bytes: Quota limit in bytes, 0 means unlimited"

as used in

plugin { ... quota_rule = *:bytes=10000000 ...

BUT, documentation for quota dict

http://wiki2.dovecot.org/Quota/Dict

states

"MySQL uses the following queries to update the quota"

and provides an SQL example of Dovecot decrementing the 'bytes' value,

"UPDATE table SET bytes=bytes-14433,messages=messages-2 ..."

I'm working on a current problem (http://dovecot.org/list/dovecot/2011-October/061538.html) with 'doveadm' reporting mixing up quote Value & Limit.

Question: Is 'bytes' supposed to contain the Value, or the Limit?

Rich