Wrap stored accessors in parameters

Modified params wrapper to account for model's stored_attributes

This reverts commit c6f9f8c2, reversing
changes made to c309073c.

Reason: This is fixing the behavior in the wrong place. Now the request
path after the request is nil and there is no way to assert that.
Also the test that was added in that PR also fails in 4.2 where the
reporter says it was passing. The reason the bahavior changed between
Rails 4.2 and Rails 5 is that the format in the path is now respected.
The correct way to fix the problem is not doign two requests in the same
controller test and use integrations tests. This change caused a
regression between Rails 5.0.1 and 5.0.2.

Fix typo in actionview error message in to_form_params helper method

Fix where_clause#except with specific where value

The entry for PR #25430 is currently present both in the CHANGELOG
for Rails 5.0 and for Rails 5.1:

https://github.com/rails/rails/blame/9d3a352777c2594123583b0bc02d0dd80f1e385b/railties/CHANGELOG.md#L61-L72

Since the PR was backported to 5-0-stable in #25499, I believe it
should be removed from the CHANGELOG of 5.1, otherwise it looks like
something changed from 5.0 to 5.1

Fix typo in Caching with Rails Guide

Fixes a regression introduced in
22ca710f where Relation#unscope with a
specific where value (vs unscoping the entire where clause) could result
in the wrong binds being left on the query.

This was caused by an index variable not being incremented properly.

More intention revealing and means `f` can go F itself 😋

user form with instead of form for in scaffold generator

Fix extension method with dirty target in has_many associations

Remove duplicated `columns` definition

Add `app:update` task to engines

Delegate `uniq` to `records`

Fix `select_all` with legacy `binds`

Extension methods should not delegate to `scope` to respect dirty
target on `CollectionProxy`.

Fixes #28419.

Occasionally we update the file generated by engine.
Therefore, I think that there is a task for updating as well as
application in the engine, it is convenient for updating.

Fix `warning: character class has duplicated range`

Evaluate the default block only when necessary

Fix changelog entry about transaction error classes [ci skip]

`ActiveRecord::TransactionSerializationError` was introduces in #25093.
However, refactored in #25107, `TransactionSerializationError` is gone.

This fixes the following warnings:

```
railties/test/generators/encrypted_secrets_generator_test.rb:15: warning: character class has duplicated range: /[\w\d]+/
railties/test/generators/encrypted_secrets_generator_test.rb:18: warning: character class has duplicated range: /production:\n#  external_api_key: [\w\d]+/
railties/test/generators/encrypted_secrets_generator_test.rb:19: warning: character class has duplicated range: /production:\n#  external_api_key: [\w\d]+/
```

Correctly check whether key is defined in configuration

Follow up of #28453.

Remove stray back-end from ActiveJob Basics guide

Minor grammar fixes for Rails 5.1 release notes

It can not check correctly with `defined?`

```ruby
irb(main):001:0> Rails.application.config.active_record
=> {:maintain_test_schema=>true, :belongs_to_required_by_default=>true}
irb(main):002:0> defined?(Rails.application.config.active_record)
=> nil
```

Follow up to #28469

The hyphenated form "back-end" only appears once in this guide; elsewhere, the un-hyphenated form "backend" is used consistently.

[ci skip]

[ci skip]

[ci skip]

[ci skip]

Fixing tons of grammar, etc.

[ci skip]