(Logging for visibility, and for potential further action i.r.t. documentation)
As mentioned in https://gerrit.wikimedia.org/r/c/operations/puppet/+/831955, we need to add unit tests to rewrite_integration_test.py:
- "test that the mapping from public url to the internal one (i.e. /v1/AUTH_mw/<container>/<object path> is working as expected."
Documentation on rewrite.py (and it's associated tests) appears to be sparse