is it possible to clone a mounted pdb?

HI everyone,

on 19c, we have mounted a pdb A - in "mount" . Is it possible to clone another pdb B from pdb A when pdbA is in mount mode (NOT read write)

SQL> show pdbs

CON_ID CON_NAME                       OPEN MODE  RESTRICTED

     2 PDB$SEED                       READ ONLY  NO

     3 PDBA                           MOUNTED

Thanks

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