Allow parametrization to be nested (#65167)
Summary:
Fixes https://github.com/pytorch/pytorch/issues/65163
Pull Request resolved: https://github.com/pytorch/pytorch/pull/65167
Reviewed By: jbschlosser
Differential Revision: D31002318
Pulled By: albanD
fbshipit-source-id: b1f1c6c9efa9e83af9789ed13efc133f777f418e
