Auto correction removes unrelated code block on "Redundant else-clause" error

[gimite]

Expected behavior

It only removes the redundant else-clause.

Actual behavior

It removes unrelated code block, resulting in code with syntax error. See below.

Steps to reproduce the problem

$ cat <<EOF > foo.rb
class Foo
  def value
    if @params
      case @params[:x]
      when 'a'
        'b'
      else
        nil
      end
    else
      'c'
    end
  end
end
EOF

$ rubocop foo.rb --auto-correct foo.rb
Inspecting 1 file
E

Offenses:

foo.rb:7:7: C: [Corrected] Style/EmptyElse: Redundant else-clause.
      else
      ^^^^
foo.rb:10:1: E: Lint/Syntax: unexpected token $end
(Using Ruby 2.1 parser; configure using TargetRubyVersion parameter, under AllCops)

1 file inspected, 2 offenses detected, 1 offense corrected

$ cat foo.rb
class Foo
  def value
    if @params
      case @params[:x]
      when 'a'
        'b'
      end
  end
end

$ ruby foo.rb
foo.rb:9: syntax error, unexpected end-of-input, expecting keyword_end

RuboCop version

Include the output of rubocop -V. Here's an example:

$ rubocop -V
0.52.1 (using Parser 2.4.0.2, running on ruby 2.4.1 i686-linux)