[2.1.x] Refs #28205 -- Corrected ModelAdmin.prepopulated_fields docs regarding when they're populated.
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@ -1067,9 +1067,9 @@ subclass::
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slug (e.g. substituting dashes for spaces; lowercasing ASCII letters; and
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removing various English stop words such as 'a', 'an', 'as', and similar).
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Fields are prepopulated on add forms but not on change forms. It's usually
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undesired that slugs change after an object is created (which would cause
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an object's URL to change if the slug is used in it).
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Prepopulated fields aren't modified by JavaScript after a value has been
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saved. It's usually undesired that slugs change (which would cause an
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object's URL to change if the slug is used in it).
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``prepopulated_fields`` doesn't accept ``DateTimeField``, ``ForeignKey``,
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``OneToOneField``, and ``ManyToManyField`` fields.
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