Does an amended pleading supersede the original pleading?

We agree. "'"It is well established that an amendatory pleading supersedes the original one, which ceases to perform any function as a pleading."' [Citations.] Thus, an amended complaint supersedes all prior complaints. [Citations.] The amended complaint furnishes the sole basis for the cause of action, and the original complaint ceases to have any effect either as a pleading or as a basis for judgment. [Citation.]" (State Compensation Ins. Fund v. Superior Court (2010) 184 Cal.App.4th 1124, 1130-1131.)