A judgment in any jurisdiction for or against the plaintiff upon the substantive merits of any action for damages founded upon a single publication or exhibition or utterance as described in Section 3425.3 shall bar any other action for damages by the same plaintiff against the same defendant founded upon the same publication or exhibition or utterance.
Source:
Section 3425.4, https://leginfo.legislature.ca.gov/faces/codes_displaySection.xhtml?lawCode=CIV§ionNum=3425.4..