Thanks Tim Graham for the review and kezabelle for the report.

Thanks Keryn Knight and Tim Graham for the reviews.

The method duplicates the functionality of Field.value_from_object()
and has the additional downside of being a privately named public
API method.

Fixed #25121 -- Added a warning that filtering sensitive information from error reporting isn't bulletproof

Removed extra blank lines in the template text debug template,
and prevented overindentation in the HTML debug template.

Django ignores the value of the TEMPLATE_* settings if TEMPLATES is also
set, which is confusing for users following older tutorials. This change
adds a system check that warns if any of the TEMPLATE_* settings have
changed from their defaults but the TEMPLATES dict is also non-empty.

Removed the TEMPLATE_DIRS from the test settings file; this was marked
for removal in 1.10 but no tests fail if it is removed now.

The new attribute is checked when the `migrate --fake-initial` option
is used. initial will be set to True for all initial migrations (this
is particularly useful when initial migrations are split) as well as
for squashed migrations.

Ticket #24090 was already fixed by
b68212f5, this commit adds tests to
verify this is indeed the case.

Thanks to Beauhurst for commissioning the work on this ticket.

These were broken back in commit 64e11a68.

Update where I live.

Setting GDALRaster.bands as a cached property was creating a circular
reference with objects having __del__ methods, which means the memory
could never be freed.
Thanks Daniel Wiesmann for the report and test, and Tim Graham for the review.