lprimak commented on PR #2711:
URL: https://github.com/apache/shiro/pull/2711#issuecomment-4506697009

   That is not going to be an issue as `subject` is the root of the object 
graph and there is only one session per subject
   
   > One question regarding the placement of the snapshot/restore in 
`beforeSuccessfulLogin()`: after `stopSession()` you call 
`subject.getSession()` to obtain the new session and restore the attributes 
into it — but `createSubject()` hasn't run yet at that point. Is there a 
guarantee that `createSubject()` will always reuse that intermediate session 
rather than creating another one? I'm wondering if snapshotting before 
`beforeSuccessfulLogin()` and restoring to the subject returned by 
`createSubject()` (i.e. directly in `login()`) would be more robust, since it 
operates on the final authenticated subject with no ambiguity about which 
session ends up in use.
   
   


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