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Changes between Initial Version and Version 1 of Ticket #24215

-              initial
+              v1
 I dealt with `add_lazy_relation()` a few months ago working on Mezzanine and I thought it could use some detangling.
 Now that the list of pending operations is stored in the Apps class, it makes sense to put the related methods on that class as well. Running a function when a model is loaded seems an appropriate job for the app registry object.
+Now that the list of pending operations is stored in the `Apps` class, it makes sense to put the related methods on that class as well. Running a function when a model is loaded seems an appropriate job for the app registry object.
 I've introduced a more generic API, whereby a user-supplied function can be called once any number of models are ready, with those freshly-loaded models as its arguments (plus optional kwargs), a helper function for related models, and the old `add_lazy_relation()` reimplemented in terms of the new API with a deprecation warning.
+Pull request at https://github.com/django/django/pull/3984