[Flow] Functional Testing affected by Policy.yaml

[Rocky]

Hi,

I have below content in my My\Package\Configuration\Testing\Policy.yaml
================
resources:
  entities:
    'My\Package\Domain\Model\School':
      My_Package_Schools_All: 'ANY'
      My_Package_Schools_Other: 'this.name != current.securityContext.party.name && this.name != NULL'

roles:
  RegisteredUser: []
  SchoolManager: []

acls:
  SchoolManager:
    entities:
      My_Package_Schools_All: GRANT
===============

In the My\Package\Test\Functional\SchoolControllerTest, I did not turn on the testableSecurityEnabled. The \My\Package\Domain\Repository\SchoolRepository can add School, but the repository can not fetch any School. If I remove My\Package\Configuration\Testing\Policy.yaml, the repository works. The problem is I have some Content Security functional testing thus can not get rid of My\Package\Configuration\Testing\Policy.yaml. 

Can anyone shed some light on this please?