no issue
- currently if you would like to edit a resource (e.g. post) and you pass an invalid model id, the following happens
- permission check calls `Post.permissible`
- the Post could not find the post, but ignored it and returned `userPermissions:true`
- then the model layer is queried again and figured out that the post does not exist
- A: there is no need to query the model twice
- B: we needed proper error handling for post and role model
e01b61dcf4