07d3d402 changed how exceptions are handled in after_commit
and after_destroy callbacks.  This commit updates the 5.0
release notes and the  ActiveRecord callback guide to reflect
the new behavior.

[ci skip]

Allow download of email attachments in the Mailer Preview template.

Remove blank else branch

Extract duplicated `create` and `create!` definition for association

Fix broken heredoc indentation caused by rubocop auto-correct

All indentation was normalized by rubocop auto-correct at 80e66cc4.
But heredocs was still kept absolute position. This commit aligns
heredocs indentation for consistency.

add Active Job bug report templates to guide [ci skip]

Follow up to #26362

fix class name typo in bug report templates for Active Job

Improve Getting Started [ci skip]

Added bug report templates for Active Job

Grammar fix

As demonstrated in #25880 the to_time method converts the utc time
instance to a local time instance which is an expensive operation.
Since to_datetime involves similar expensive operations we should
also cache it to speed up comparison with lots of values.

fix document for radio_button [ci skip]

add `# Let's say that @user.receive_newsletter returns "no":` for `def radio_button(object_name, method, tag_value, options = {})`.
fix `# Let's say that @user.category returns "no":` to `# Let's say that @user.receive_newsletter returns "no":`

remove warning from `video_tag`

This removes the following warning.

```
actionview/lib/action_view/helpers/asset_tag_helper.rb:291: warning: shadowing outer local variable - options
```

Follow up of #25602

Since keys are truncated, ruby 2.4 doesn't accept keys greater than their lenghts.
keys of same value but different lenght and greater than key size of cipher, produce the same results
as reproduced at https://gist.github.com/rhenium/b81355fe816dcfae459cc5eadfc4f6f9
Since our default cipher is 'aes-256-cbc', key length for which is 32 bytes, limit the length of key being passed to Encryptor to 32 bytes.
This continues to support backwards compat with any existing signed data, already encrupted and signed with 32+ byte keys.
Also fixes the passing of this value in multiple tests.

Update Jason Zimdars twitter

I consider the missing deprecation warning a bug fix from
the point of view of the 5.0.x series and forward.

Makes it clearer why we're doing this
Add a comment to elaborate on what the undef means and move it closer
to the deprecations so it's less likely for whoever pulls the
deprecations that it should go too.

Do not allow to_param on AC::Parameters

The fact that this only includes column names is an oversight.

There are some minor changes to the point type as I had forgotten that
this will affect the behavior of `t.point` in migrations and the schema
dumper so we need to handle those as well.

I'll say this again so I can convince myself to come up with a better
structure... TYPES SHOULD NOT CARE ABOUT SCHEMA DUMPING AND WE NEED TO
BETTER SEPARATE THESE.

use `message` that specified in argument to error message

This reverts commit 3a1f6fe7.

This commit takes the code in a direction that I am looking to avoid.
The predicate builder should be purely concerned with AST construction
as it matters to methods like `where`. Things like case sensitivity
should continue to be handled elsewhere.