Import git repository with differentials from one instance to another

I would like to migrate a git repository that follows Phabricator flow using differentials to another Phabricator instance.

Is there a way that I can prevent Phabricator from parsing the non-existent tasks/reviewers/differentials in the commits?

Can’t you turn off notification (https://secure.phabricator.com/book/phabricator/article/diffusion_managing/#basics-disable-publishing ) while you’re importing it?