Rails/DynamicFindBy cop is causing bad formatting on safe auto-correct

[ZachWileman]

When trying to run safe auto-correct to resolve issues in my Rails project, I see a large number of incorrect formats occurring. When disabling the Rails/DynamicFindBy cop, this issue seems to go away.

Here's a link to the Rubocop configuration that I'm using: https://gist.github.com/zdw27f/9a935a27e55180ff66cc3b94ca107b86
.rubocop.yml < rubocop-rails.yml < rubocop-core.yml

Here's an example of running bin/rubocop -a that shows what the formatting looks like w/ and w/o the DynamicFindBy cop: https://gist.github.com/zdw27f/1e430dcfb255e73694ff90af05b78217

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Expected behavior

I expect this code to get formatted to look like this.

Actual behavior

Currently, this code gets formatted into this when the Rails/DynamicFindBy cop is enabled.

Steps to reproduce the problem

Create a Rails project that uses the Rubocop configuration I've mentioned above, and then copy the example code into a controller file (not necessarily sure if it has to be a controller, that's just where I found the issue), and then run bin/rubocop -a and see how it affects the file.

RuboCop version

EDIT: Upgraded to rubocop-ast-1.0.0 and got the same results.

$ rubocop -V
1.0.0 (using Parser 2.7.2.0, rubocop-ast 1.0.0, running on ruby 2.7.0 x86_64-darwin18)
  - rubocop-performance 1.8.1
  - rubocop-rails 2.8.1