Admin interface creates invalid ACLs

[lkiesow]

…well, not strictly invalid but parts of them are unsupported and cause thousands of warnings in Opencast.

Uploading a video via the new admin interface you get a ton of errors like these:

2024-05-07 13:20:31,744 | INFO  | (EventIndexUtils:371) - Event index does not support denial via ACL, ignoring ROLE_ANONYMOUS is not allowed to write
2024-05-07 13:20:33,534 | INFO  | (EventIndexUtils:371) - Event index does not support denial via ACL, ignoring ROLE_ANONYMOUS is not allowed to write
2024-05-07 13:20:33,682 | INFO  | (EventIndexUtils:371) - Event index does not support denial via ACL, ignoring ROLE_ANONYMOUS is not allowed to write
2024-05-07 13:20:35,537 | INFO  | (EventIndexUtils:371) - Event index does not support denial via ACL, ignoring ROLE_ANONYMOUS is not allowed to write
2024-05-07 13:20:37,547 | INFO  | (EventIndexUtils:371) - Event index does not support denial via ACL, ignoring ROLE_ANONYMOUS is not allowed to write
2024-05-07 13:20:40,686 | INFO  | (EventIndexUtils:371) - Event index does not support denial via ACL, ignoring ROLE_ANONYMOUS is not allowed to write

It seems like some part of Opencast is adding denial rules. That part is the new admin interface.
This is what it is sending:

{
  "acl": {
    "ace": [
      {
        "action": "read",
        "allow": true,
        "role": "ROLE_ADMIN"
      },
      {
        "action": "write",
        "allow": true,
        "role": "ROLE_ADMIN"
      },
      {
        "action": "read",
        "allow": true,
        "role": "ROLE_ANONYMOUS"
      },
      {
        "action": "write",
        "allow": false,
        "role": "ROLE_ANONYMOUS"
      }
    ]
  }
}

This is what it should be sending:

{
  "acl": {
    "ace": [
      {
        "action": "read",
        "allow": true,
        "role": "ROLE_ADMIN"
      },
      {
        "action": "write",
        "allow": true,
        "role": "ROLE_ADMIN"
      },
      {
        "action": "read",
        "allow": true,
        "role": "ROLE_ANONYMOUS"
      }
    ]
  }
}