#25840: cache.get_or_set() works incorrectly with DummyCache backend
-------------------------------------+-------------------------------------
     Reporter:  oleksiyivanenko      |                    Owner:  nobody
         Type:  Bug                  |                   Status:  new
    Component:  Core (Cache system)  |                  Version:  1.9
     Severity:  Normal               |               Resolution:
     Keywords:  get_or_set           |             Triage Stage:  Accepted
  dummycache                         |
    Has patch:  1                    |      Needs documentation:  0
  Needs tests:  1                    |  Patch needs improvement:  0
Easy pickings:  0                    |                    UI/UX:  0
-------------------------------------+-------------------------------------

Comment (by davidszotten):

 one might argue that this is a bug in the `BaseCache` implementation of
 `get_or_set`:


 {{{
 def get_or_set(...)
     # [snip]
     val = self.add(key, default, timeout=timeout, version=version)
     if val:
         # unlikely, but we might have been added, and evicted again by the
 time we get here,
         # should we not call `get` with the default?
         return self.get(key, version=version)

 }}}

--
Ticket URL: <https://code.djangoproject.com/ticket/25840#comment:2>
Django <https://code.djangoproject.com/>
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