#33260: Crash when using query set select_for_update(of=(...)) with exists()
-------------------------------------+-------------------------------------
     Reporter:  Hannes Ljungberg     |                    Owner:  Hannes
                                     |  Ljungberg
         Type:  Bug                  |                   Status:  assigned
    Component:  Database layer       |                  Version:  dev
  (models, ORM)                      |
     Severity:  Normal               |               Resolution:
     Keywords:                       |             Triage Stage:  Accepted
    Has patch:  0                    |      Needs documentation:  0
  Needs tests:  0                    |  Patch needs improvement:  0
Easy pickings:  0                    |                    UI/UX:  0
-------------------------------------+-------------------------------------
Changes (by Mariusz Felisiak):

 * stage:  Unreviewed => Accepted


Comment:

 Thanks for the report. We can add an early return even before the loop:
 {{{#!python
 if not self.klass_info:
     return []
 result = []
 invalid_names = []
 for name in ...
 }}}

-- 
Ticket URL: <https://code.djangoproject.com/ticket/33260#comment:1>
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