Layout/RedundantLineBreak misses case inside block

[mockdeep]

Expected behavior

Given the below code, I would expect the Layout/RedundantLineBreak rule to report that the line inside the block should not be wrapped. Note: our line length is set to 84 and InspectBlocks is set to false.

some_array.map do |something|
  my_slightly_long_but_not_that_long_method(
    something,
  )
end

The code should be enforced to not wrap:

some_array.map do |something|
  my_slightly_long_but_not_that_long_method(something)
end

Actual behavior

Rubocop does not report an error. If I add another line to the block it does report an issue:

some_array.map do |something|
  foo
  my_slightly_long_but_not_that_long_method(
    something,
  )
end

# C: [Correctable] Layout/RedundantLineBreak: Redundant line break detected.                                                                                                
#  my_slightly_long_but_not_that_long_method( ...
#  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

RuboCop version

$ rubocop -V
1.23.0 (using Parser 3.0.3.2, rubocop-ast 1.15.0, running on ruby 2.7.5 x86_64-linux)
  - rubocop-performance 1.12.0
  - rubocop-rails 2.12.4
  - rubocop-rake 0.6.0
  - rubocop-rspec 2.6.0