CA Civ Code Section 9510

A stop payment notice ceases to be effective, and the public entity shall release funds withheld, in either of the following circumstances:

(a)

An action to enforce payment of the claim stated in the stop payment notice is dismissed, unless expressly stated to be without prejudice.

(b)

Judgment in an action to enforce payment of the claim stated in the stop payment notice is against the claimant.