Issue #12594 has been updated by Nikita Sokolov.

Description updated

----------------------------------------
Bug #12594: The class does not inherit from a module the modules that were included after the inclusion
https://bugs.ruby-lang.org/issues/12594#change-59897

* Author: Nikita Sokolov
* Status: Open
* Priority: Normal
* Assignee: 
* ruby -v: 2.3.0, 2.3.1
* Backport: 2.1: UNKNOWN, 2.2: UNKNOWN, 2.3: UNKNOWN
----------------------------------------
Reproduced in ruby 2.3.0 and 2.3.1
You can see that the result changes if I swap places `LimitedPeriod.include Period` and `Period.include Serialization`.

~~~ ruby
module Serialization
end

module Period
end

Period.include Serialization

class LimitedPeriod
  include Period
end

LimitedPeriod < Serialization
# => true
~~~

~~~ ruby
module Serialization
end

module Period
end

class LimitedPeriod
  include Period
end

Period.include Serialization

LimitedPeriod < Serialization
# => false
~~~




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