Java Specs PlanPermissions are not being set

[FrankyG]

When my Bamboo Spec creates a build plan the permissions are (what I presume to be) default instead of what I set in code.

Relevant parts of my code:

public static void main(String[] args) {
  // ... snip ...

  Plan plan = planSpec.createPlan();
  bambooServer.publish(plan);

  PlanPermissions planPermission = planSpec.createPlanPermission();
  bambooServer.publish(planPermission);
}

Plan createPlan() {
  return new Plan(project(), PLAN_NAME, PLAN_KEY)
    .description(PLAN_DESCRIPTION)
    .linkedRepositories(LINKED_REPOSITORY_NAME)
    // ... snip ...
}

Project project() {
  return new Project()
    .key(PROJECT_KEY);
}

PlanPermissions createPlanPermission() {
   Permissions permissions = new Permissions()
         .groupPermissions("test-dev", PermissionType.VIEW, PermissionType.CLONE, PermissionType.BUILD, PermissionType.EDIT)
         .groupPermissions("test-admin", PermissionType.VIEW, PermissionType.CLONE, PermissionType.BUILD, PermissionType.EDIT, PermissionType.ADMIN)
         .loggedInUserPermissions(PermissionType.VIEW)
         .anonymousUserPermissionView();

   return new PlanPermissions(new PlanIdentifier(PROJECT_KEY, PLAN_KEY))
         .permissions(permissions);
}

Result of "View plan as Java Specs":

public PlanPermissions planPermission() {
  final PlanPermissions planPermission = new PlanPermissions(
    new PlanIdentifier(PROJECT_KEY, PLAN_KEY))
      .permissions(new Permissions()
      .loggedInUserPermissions(PermissionType.VIEW)
      .anonymousUserPermissionView());
  return planPermission;
}

I am using Bamboo 7.0.4 connected to Bitbucket Server 6.6.1.

The very first successful scan of the linked repository worked fine. I was able to access the edit screen, view the generated Java Spec, etc.
Before pushing my next change (containing minor formatting), I deleted the build plan. After the next push, when the build plan was recreated, the permissions were missing. Even after deleting again and reverting my code, I can't get the permissions to work.

I had to set Project-level plan permissions before I could access the edit screen to get the above code snippet.

[FrankyG · Accepted solution]

It appears that setting Access all projects on the linked repository fixed this. 

Linked Repository -> Bamboo Specs -> Access -> Access all projects

I ticked this to resolve a different issue (plan didn't have access to create a Deployment Project), and my access levels started applying.

Unfortunately this setting appears to require Global Admin, so I'm not sure if it's appropriate for all repos to have this.

[FrankyG]

Accepting my own answer, but would love some insight into whether this is a good idea, or why it may have worked initially.