Comment breaks yaml output

[jleader]

Given the following file:

---
- name: foo
  # comment here screws things up
  bar: {}

Running dyff yaml foo.yaml produces the following output:

---
- name: foo
  # comment here screws things up
bar: {}

Without the comment, it works correctly (bar is indented to match name: foo). JSON output works correctly even in the presence of the comment. This is with dyff 1.5.7, which is the latest available from homebrew.