Calendar Week 34 — Ending 28 August

Channels and Daphne betas for v4.

Triaged:

• https://code.djangoproject.com/ticket/33953 -- RenameModel breaking change in 4.1 with ManyToManyField (Accepted)
• https://code.djangoproject.com/ticket/33951 -- Feature Request: default management command arguments from settings (wontfix)
• https://code.djangoproject.com/ticket/33939 -- Fixture dirs duplicates undetected if dir is Path instance (Accepted)
• https://code.djangoproject.com/ticket/33950 -- ModelChoiceField and chained prefetch_related(): queries made twice (Duplicate of #22841)
• https://code.djangoproject.com/ticket/33948 -- 'Response' object has no attribute 'headers' (Invalid)
• https://code.djangoproject.com/ticket/33946 -- admin change_form field label does not use mark_safe (Invalid)
• https://code.djangoproject.com/ticket/33945 -- get_previous_in_order and get_next_in_order return incorrect data when objects is stored in non-default database (Accepted)
• https://code.djangoproject.com/ticket/33942 -- file validator - validating file with mime and magic numbers (wontfix)
• https://code.djangoproject.com/ticket/33944 -- Is it cleaner to make the upload_to function a method of the model class (Invalid)
• https://code.djangoproject.com/ticket/33939 -- Change docs for transaction.on_commit to suggest functools.partial instead of lambda (Accepted)

Reviewed:

• https://github.com/django/django/pull/15989 -- Refs #27412 -- Confirmed support for executing Coalesce(subquery).
• https://github.com/django/django/pull/15991 -- Fixed #33830 -- Added default disabled False attrs in ClearFileInput
• https://github.com/django/django/pull/15926 -- Fixed #24179 -- FilteredSelectMultiple widget - add filter field to the right column.
• https://code.djangoproject.com/ticket/33830 -- Variable lookup errors are logged rendering 'clearable_file_input.html'
• https://github.com/django/django/pull/15980 -- Removed unused path variable in model_fields tests.
• https://github.com/django/django/pull/15983 -- Fixed #32210 -- Default value of UUIDField in Inline Formset
• https://github.com/django/django/pull/15987 -- Fixed #33949 -- Fixed fixture dirs duplicates with Path instances.
• https://github.com/django/django/pull/15984 -- Fixed #33927 -- Fixed crash when displaying ArrayField with choices in admin.
• https://github.com/django/django/pull/15978 -- Fixed #33920 -- Doc'd dependency of LOGGING_CONFIG callback on non-empty LOGGING.
• https://github.com/django/django/pull/15981 -- Fixed #33939 -- Replaced lambda with functools.partial
• https://github.com/django/django/pull/15973 -- Fixed #33938 -- Fixed regression in m2m addition dependency detection.
• https://github.com/django/django/pull/15944 -- Add django.template.Engine.get_default_backend for easier access to backend methods