Style/NestedTernaryOperator auto-correction produces invalid code

[Desentso]

Style/NestedTernaryOperator auto-correction produces syntactically invalid code. It seems to occur when the nested ternary is enclosed within parentheses. Though it could be argued that in the example outlined later, the "nested ternary" isn't really even a nested ternary but a completely separate statement.

---

Expected behavior

I would expect it to produce valid code or not try to auto-correct at all.

Actual behavior

Style/NestedTernaryOperator auto-correction produces syntactically invalid code.

Steps to reproduce the problem

Run it on any file that contains structure similar to:

x ? y + (z ? 1 : 0) : nil

You can then see that it produces =>

if x
  y + (z ? 1 : 0
else
  nil
end

which is obviously syntactically invalid, since it's missing the closing parenthesis ).

RuboCop version

0.92.0 (using Parser 2.7.1.5, rubocop-ast 0.7.1, running on ruby 2.5.7 x86_64-darwin18)