Layout/BeginEndAlignment not always correctly detecting alignment

[tas50]

Expected behavior

Layout/BeginEndAlignment should correctly detect begin/end alignment.

Actual behavior

If begin/end is assigned to value then the alignment is being incorreclty detected:

Steps to reproduce the problem

Given this code:

class RspecVersionString
  def self.rspec_version_string
    @rspec_version_string ||= begin
                                stubs = Gem::Specification.send(:installed_stubs, Gem::Specification.dirs, "rspec-core-*.gemspec")
                                stubs.select! { |stub| stub.name == "rspec-core" && Gem::Dependency.new("rspec-core", ">= 0").requirement.satisfied_by?(stub.version) }
                                stubs.max_by(&:version).version.to_s
                              end
  end
end

/Users/tsmith/test.rb:7:31: W: [Corrected] Layout/BeginEndAlignment: end at 7, 30 is not aligned with @rspec_version_string ||= begin at 3, 4.
                              end
                              ^^^

1 file inspected, 1 offense detected, 1 offense corrected

Autocorrects to this:

class RspecVersionString
  def self.rspec_version_string
    @rspec_version_string ||= begin
                                stubs = Gem::Specification.send(:installed_stubs, Gem::Specification.dirs, "rspec-core-*.gemspec")
                                stubs.select! { |stub| stub.name == "rspec-core" && Gem::Dependency.new("rspec-core", ">= 0").requirement.satisfied_by?(stub.version) }
                                stubs.max_by(&:version).version.to_s
    end
  end
end

RuboCop version

master