Upgrade all of rails to version 6.1.5

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Here is everything you need to know about this upgrade. Please take a good look at what changed and the test results before merging this pull request.

What changed?

✳️ activerecord (>= 3.2.3, < 5.2.0 → >= 3.2.3, <= 6.1.5) · Repo · Changelog

Release Notes

6.1.5 (from changelog)

• Fix ActiveRecord::ConnectionAdapters::SchemaCache#deep_deduplicate for Ruby 2.6.

  Ruby 2.6 and 2.7 have slightly different implementations of the String#@- method. In Ruby 2.6, the receiver of the String#@- method is modified under certain circumstances. This was later identified as a bug (https://bugs.ruby-lang.org/issues/15926) and only fixed in Ruby 2.7.

  Before the changes in this commit, the ActiveRecord::ConnectionAdapters::SchemaCache#deep_deduplicate method, which internally calls the String#@- method, could also modify an input string argument in Ruby 2.6 -- changing a tainted, unfrozen string into a tainted, frozen string.

  Fixes #43056

  Eric O'Hanlon

• Fix migration compatibility to create SQLite references/belongs_to column as integer when migration version is 6.0.

  reference/belongs_to in migrations with version 6.0 were creating columns as bigint instead of integer for the SQLite Adapter.

  Marcelo Lauxen

• Fix dbconsole for 3-tier config.

  Eileen M. Uchitelle

• Better handle SQL queries with invalid encoding.

  Post.create(name: "broken \xC8 UTF-8")

  Would cause all adapters to fail in a non controlled way in the code responsible to detect write queries.

  The query is now properly passed to the database connection, which might or might not be able to handle it, but will either succeed or failed in a more correct way.

  Jean Boussier

• Ignore persisted in-memory records when merging target lists.

  Kevin Sjöberg

• Fix regression bug that caused ignoring additional conditions for preloading has_many through relations.

  Fixes #43132

  Alexander Pauly

• Fix ActiveRecord::InternalMetadata to not be broken by config.active_record.record_timestamps = false

  Since the model always create the timestamp columns, it has to set them, otherwise it breaks various DB management tasks.

  Fixes #42983

  Jean Boussier

• Fix duplicate active record objects on inverse_of.

  Justin Carvalho

• Fix duplicate objects stored in has many association after save.

  Fixes #42549.

  Alex Ghiculescu

• Fix performance regression in CollectionAssocation#build.

  Alex Ghiculescu

• Fix retrieving default value for text column for MariaDB.

  fatkodima

Does any of this look wrong? Please let us know.

Commits

See the full diff on Github. The new version differs by 3 commits:

• Preparing for 6.1.5 release
• Update CHANGELOG [ci skip]
• Merge branch '6-1-sec' into 6-1-stable

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[depfu]

Closed in favor of #70.