California Election Code
11302. If a vacancy occurs in an office after a recall petition is filed against the vacating officer, the recall election shall nevertheless proceed. The vacancy shall be filled as provided by law, but any person appointed to fill the vacancy shall hold office only until a successor is selected in accordance with Article 4 (commencing with Section 11360) or Article 5 (commencing with Section 11380), and the successor qualifies for that office.