DateTimeField: Using localized_fields breaks timezone conversion

[Matt Austin]

If I add a DateTimeField to the form's localized_fields Meta property (in order to get the date correctly formatted), then the rendered field value is no longer converted to the activated timezone. This also occurs when setting localized=True on the DateTimeField.

Using Django 1.6b2.

[Aymeric Augustin]

I wasn't aware of localized_fields. I'll look into it.

[Aymeric Augustin]

There's a good reason why I didn't know about localized_fields: they're a new feature in 1.6.

The corresponding ticket is #13546 and the commit is [756b81db].

Since it's a major bug in a new feature, I'm marking the ticket as a release blocker.

Since it isn't a bug in my code, I'm deassigning myself.

[Aymeric Augustin]

Florian rightfully points out that, if the bug can be triggered by setting localize=True on a DateTimeField, it isn't new in 1.6. I'll have to deal with it.

[Aymeric Augustin]

Phew, it's actually a regression in 1.6 introduced in 893d8de6f5d0b6bf23e2ed072e18fe2e012395c6.

Florian and I independently identified this commit through bisection.

[Florian Apolloner <florian@…>]

In 56743cf9e337826e4c615909570bb057142a6a7b:

Ensured that BoundField.as_widget always returns properly localized fields.

This is a follow-up to #18777 which improperly converted to strings in
prepare_value and as such caused regressions like #21074.

Refs #18777, #21074

[Florian Apolloner <florian@…>]

In ece8d6521771635fb5e15d1093524b4f848608fa:

[1.6.x] Ensured that BoundField.as_widget always returns properly localized fields.

This is a follow-up to #18777 which improperly converted to strings in
prepare_value and as such caused regressions like #21074.

Refs #18777, #21074

Backport of 56743cf9e337826e4c615909570bb057142a6a7b from master.

[Aymeric Augustin <aymeric.augustin@…>]

In e76dd4cd1a12f610698b8aa8854b0e0e1dfb21a2:

[1.6.x] Fixed #21074 -- Added tests for localized datetime fields.

Fields must render values in the current time zone.

This commit only contains tests because this ticket was just a symptom of
a regression from #18777 that was fixed separately.

Backport of 5444a9c from master.

[Aymeric Augustin <aymeric.augustin@…>]

In 5444a9c68353d8108df1cf69c9557740d626a18d:

Fixed #21074 -- Added tests for localized datetime fields.

Fields must render values in the current time zone.

This commit only contains tests because this ticket was just a symptom of
a regression from #18777 that was fixed separately.