autocorrect Performance/RedundantMerge breaks syntax

[Tietew]

After autocorrect following code, syntax will be broken.

def something
  hash.merge!({}) if blah?
  hash
end

Expected behavior

Should not break syntax.
Or give up autocorrection.

Actual behavior

def something
   if blah?
  hash
end

Steps to reproduce the problem

Put the code to test.rb then:

$ bundle exec rubocop test.rb -a --only Performance/RedundantMerge
Inspecting 1 file
E

Offenses:

test.rb:2:3: C: [Corrected] Performance/RedundantMerge: Use  instead of hash.merge!({}).
  hash.merge!({}) if blah?
  ^^^^^^^^^^^^^^^
test.rb:5:1: E: Lint/Syntax: unexpected token $end
(Using Ruby 2.6 parser; configure using TargetRubyVersion parameter, under AllCops)

1 file inspected, 2 offenses detected, 1 offense corrected

RuboCop version

0.77.0 (using Parser 2.6.5.0, running on ruby 2.6.5 x86_64-linux)

rubocop-performance is 1.5.1