…rectories. Previously when collecting static files, the directories would receive permissions from the global umask. Now the default permission comes from FILE_UPLOAD_DIRECTORY_PERMISSIONS and there's an option to specify the permissions by subclassing any of the static files storage classes and setting the directory_permissions_mode parameter.
Thanks Simon Charette for the suggestion. Refs #21169.
Thanks Rhett Garber for the report and initial patch.
…h value 0.
Thanks to trac user oubiga for the report.
Thanks Preston Holmes for the draft text.
The `remove()` and `clear()` methods of the related managers created by `ForeignKey`, `GenericForeignKey`, and `ManyToManyField` suffered from a number of issues. Some operations ran multiple data modifying queries without wrapping them in a transaction, and some operations didn't respect default filtering when it was present (i.e. when the default manager on the related model implemented a custom `get_queryset()`). Fixing the issues introduced some backward incompatible changes: - The implementation of `remove()` for `ForeignKey` related managers changed from a series of `Model.save()` calls to a single `QuerySet.update()` call. The change means that `pre_save` and `post_save` signals aren't called anymore. - The `remove()` and `clear()` methods for `GenericForeignKey` related managers now perform bulk delete so `Model.delete()` isn't called anymore. - The `remove()` and `clear()` methods for `ManyToManyField` related managers perform nested queries when filtering is involved, which may or may not be an issue depending on the database and the data itself. Refs. #3871, #21174. Thanks Anssi Kääriäinen and Tim Graham for the reviews.
Application template now includes an empty migrations module, and the autodetector will only make initial migrations for apps with empty modules.
Thanks Gunnar Scherf for the report and the suggested patch.