Comment 3 for bug 2002526

Root cause, Issue appears after new release of yamllint 1.29.0, released on 10th January: https://pypi.org/project/yamllint/1.29.0/#history

I was able to reproduce the issue locally:-

With 1.28.0 version -> we don't see this error-> wrong indentation: expected at least 3
~~~
$ pip list | grep -i yamllint
yamllint 1.28.0

$ pwd
/tmp/debug/tripleo-quickstart/roles/environment/setup/tasks

$ yamllint main.yml
main.yml
  2:1 warning missing document start "---" (document-start)
  2:81 error line too long (96 > 80 characters) (line-length)
  15:81 error line too long (85 > 80 characters) (line-length)
  69:81 error line too long (81 > 80 characters) (line-length)
  75:81 error line too long (82 > 80 characters) (line-length)
~~~

In version 1.29.0 we start seeing a new error: wrong indentation: expected at least 3 (indentation)
~~~
$ pip install yamllint==1.29.0
Collecting yamllint==1.29.0
  Using cached yamllint-1.29.0-py3-none-any.whl (62 kB)
Requirement already satisfied: setuptools in /tmp/test/lib/python3.9/site-packages (from yamllint==1.29.0) (59.5.0)
Requirement already satisfied: pyyaml in /tmp/test/lib64/python3.9/site-packages (from yamllint==1.29.0) (6.0)
Requirement already satisfied: pathspec>=0.5.3 in /tmp/test/lib/python3.9/site-packages (from yamllint==1.29.0) (0.10.3)
Installing collected packages: yamllint
  Attempting uninstall: yamllint
    Found existing installation: yamllint 1.28.0
    Uninstalling yamllint-1.28.0:
      Successfully uninstalled yamllint-1.28.0
Successfully installed yamllint-1.29.0

.
$ yamllint main.yml
main.yml
  2:1 warning missing document start "---" (document-start)
  2:81 error line too long (96 > 80 characters) (line-length)
  6:3 error wrong indentation: expected at least 3 (indentation) >>>>> new error
  15:81 error line too long (85 > 80 characters) (line-length)
  69:81 error line too long (81 > 80 characters) (line-length)
  75:81 error line too long (82 > 80 characters) (line-length)
~~~