California Code, Civil Code - CIV § 1952

(a) Except as provided in subdivision (c), nothing in Sections 1951 to 1951.8, inclusive, affects the provisions of Chapter 4 (commencing with Section 1159) of Title 3 of Part 3 of the Code of Civil Procedure, relating to actions for unlawful detainer, forcible entry, and forcible detainer.

(b) Unless the lessor amends the complaint as provided in paragraph (1) of subdivision (a) of Section 1952.3 to state a claim for damages not recoverable in the unlawful detainer proceeding, the bringing of an action under the provisions of Chapter 4 (commencing with Section 1159) of Title 3 of Part 3 of the Code of Civil Procedure does not affect the lessor's right to bring a separate action for relief under Sections 1951.2, 1951.5, and 1951.8, but no damages shall be recovered in the subsequent action for any detriment for which a claim for damages was made and determined on the merits in the previous action.

(c) After the lessor obtains possession of the property under a judgment pursuant to Section 1174 of the Code of Civil Procedure, he is no longer entitled to the remedy provided under Section 1951.4 unless the lessee obtains relief under Section 1179 of the Code of Civil Procedure.