One other option that you could also explore is, to install a new oracle home on the same server, edit the initialization file to set the db_name to PROD and restore the backup to a new location using the set new name command for each datafile.

Basically, RMAN expects that the db_name parameter matches with the name of the database in the control file. In one oracle home, you cannot have databases with same name..Hence, as a temporary workaround, you could setup a new oracle home, complete the recovery there, nid the database to rename it to DEV.

You could later get rid of this temporary oracle home and manage it from the original Oracle home.