Modify/delete nested/selected values with jq and output entire document

I'm migrating between Terraform providers, and to resolve a bug I need to change the tfstate files which are huge JSON blobs. I've distilled the file down to the most basic form, but I'd like to change from:

{"resources": [    {"provider": "something_else","type": "foo"    },    {"provider": "provider[\"registry.terraform.io/eddycharly/kops\"]","type": "kops_cluster","instances": [{"attributes": {"another_attr": "hello world","config_base": "s3://foo-bucket/bar-env","config_store": ""        }      }]    },    {"provider": "something_else","type": "foo"    }  ]}

To:

{"resources": [    {"provider": "something_else","type": "foo"    },    {"provider": "provider[\"registry.terraform.io/eddycharly/kops\"]","type": "kops_cluster","instances": [{"attributes": {"another_attr": "hello world","config_store": [{"base": "s3://foo-bucket/bar-env"          }]        }      }]    },    {"provider": "something_else","type": "foo"    }  ]}

To this end I've come up with the expression:

.resources[] | select(  .provider == "provider[\"registry.terraform.io/eddycharly/kops\"]" and  .type == "kops_cluster") |.instances[].attributes |.config_base as $config_base |.config_store |= [{ "base":$config_base }] |del(.config_base)

but the resulting output is only the modified .resources[].instances[].attributes block, not the entire document, eg:

{"another_attr": "hello world","config_store": [    {"base": "s3://foo-bucket/bar-env"    }  ]}

How can I rearrange this expression to output the entire document?