VBA Err not reset after Exit Sub, despite documentation

I suggest we consider an example with this code

Private Sub SubA()
    SubD 'SubB 
    Debug.Print "Err.number=", Err.Number; "Err.Source=", Err.Source
    MsgBox Err.Number
End Sub
Private Sub SubB()
    On Error Resume Next
    Err.Raise 1234
    Debug.Print "Err.number=", Err.Number; "Err.Source=", Err.Source
    Exit Sub
End Sub
Private Sub SubD()
    On Error GoTo errhandler
    Err.Raise 1234
    Exit Sub
errhandler:
    Debug.Print "Err.number=", Err.Number; "Err.Source=", Err.Source
    Exit Sub
End Sub

Case when we call SubB we get output

Err.number=    1234 Err.Source=             Database
Err.number=    1234 Err.Source=             Database

With SubD we get

Err.number=    1234 Err.Source=             Database
Err.number=    0 Err.Source= 

In SubD error is "handled". Then, after Exit Sub, error is cleared.

By applying "on error resume next" we leave the error "suppressed" but not "handled".

So Exit Sub, Exit Function, Exit Property clear error after handling, otherwise, error is transferred to a higher level in the call stack, which is logical.

Upd1
Documentation says about clearing err when exit (Sub,Function,Property) sub, where error handled. If Sub not handle error, Exit Sub do not clear error.

In "error handler" part of sub we can read value like "err.number". So, within Sub "err" not cleared implicitly.
And "Exit Sub" implicitly call "err.clear", if we don't clear explicitly before.

If error is "handled", this event do not propagate thru "call stack".

What is "error handling" in this case?
We see that On Error GoTo errhandler and then jump to errhandler is "error handling".
Also, commands like on error resume next, on error goto some_handler ... after error will reset error - clear current error -> handle this error.