The `@offsets` cache is used by FinderMethods to cache records found by
find_nth. This cache is cleared in AR::Relation#reset, but not in
CollectionProxy#reset or CollectionProxy#reload.

Because of this, since #29098, calling #first/#find_nth/etc after
calling #reload or #reset on an association could return a stale record.
This is an issue both when the full association target is loaded and
when the item is loaded in #find_nth.

This commit solves the problem by clearing the `@offsets` cache in
CollectionProxy#reset and CollectionProxy#reload.

Fix ActiveRecord::Persistence#touch with locking

`ActiveRecord::Persistence#touch` does not work well when optimistic
locking enabled and `locking_column`, without default value, is null in
the database.

Fix destroy with locking_column value null

Fix destroying existing object does not work well when optimistic
locking enabled and `locking column` is null in the database.

Follow 22a822e5, #28914

Updates README on rails internal dev tools

... and minor typo fix

Use bulk INSERT to insert fixtures

Improves the performance from O(n) to O(1).
Previously it would require 50 queries to
insert 50 fixtures. Now it takes only one query.

Disabled on sqlite which doesn't support multiple inserts.

Fix current_page? helper issue with engine root path

Add test cases for optimistic locking

prepare for Minitest 6

Use of ParameterFilter no longer forces `request.filtered_parameters' class to be Hash

fix

fix

nodoc AC::Connection::WebSocket

Fix `Relation#exists?` queries with query cache

Prevent extra `scope` construction in `find_target`

Refactor #insert_fixtures to use Arel

Deprecate an `capify!` method in generators and templates

CI against JRuby 9.1.12.0

Fix examples for `AC::Parameters#to_query` [ci skip]

Without `permit`, `AC::Parameters#to_query` raise
`AC::UnfilteredParameters`.

```ruby
params = ActionController::Parameters.new({
  name: "David",
  nationality: "Danish"
})

params.to_query
# => ActionController::UnfilteredParameters: unable to convert unpermitted parameters to hash
```

http://jruby.org/2017/06/15/jruby-9-1-12-0.html

Add a test case for #28754

Remove debug print

Because constructing `scope` is a little expensive.

The `capify` command has been removed by Capistrano 3 and became to
`cap install`.
Therefore, the `capify!` method has no meaning in Capistrano 3.
I think that should deprecate.

Ref: https://github.com/capistrano/capistrano/commit/492793916acf32ffe1604daec6fd4892c8935018

This debug print was added in 87f5e5e2 for finding the regression caused
by d314646c and the regression has already been fixed in 969339bd.

A part for JSON was splitted from #28416 as #29273 and #29273 has
already been merged.

Closes #28754.
Closes #27588.

[Ryuta Kamizono & Bradley Priest]

Fixes FIXME: rb-inotify 0.99 has been released

[ci skip] Update fedora SQLite3 package name

Remove unused defined association