Mirror Push to a repo and existing project meta data

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I have done a git clone --mirror of my repo to local machine.
I have removed some unwanted artiacts from history using BFG Repo cleaner.
When do a git push --mirror back tot the original repo will any of the project meta data be disturbed. I am particularly interested in the Infrastructure Terraform menu? I wouldn’t want to destroy any data there.

Any advice would be greatly appreciated

Thanks,
Neil