State limitation on Content/Versionread or Content/Publish policy causes exception when creating items.

Prereq.: Create an editor user assigned to a role with policies like on attachment. The key is that a state limitation is set on either Versionread policy or Publish policy.

Steps:

1. Log in to admin panel as this user.
2. Go to Content / Content strucutre.
3. Click Create and choose some Content Type.

Actual result: Error 500 occurs

An exception has been thrown during the rendering of a template ("Property 'mainLocationId' not found on class 'eZ\Publish\Core\Repository\Values\Content\ContentCreateStruct'").