Reproduce behaviour in pants where modifications to __defaults__ in BUILD files are not detected/propagated when using --changed-since

Checkout the commit:

git checkout dd83a04f2fd46109e001033fb3ae9d88b6c9e50a

In this current commit, we have some BUILD files (example-1/libs/BUILD and example-1/BUILD) where pylint, black and flake8 are skipped.

We can see that all linting tests pass:

pants --no-local-cache lint ::
echo $?

It yields (truncated):

✓ autoflake succeeded.
✓ bandit succeeded.
✓ isort succeeded.
0

Case 1: BUILD file is modified

1. Modify the example-1/libs/BUILD file, setting all the skip_* args to False instead of True:

   sed -i '' 's/True/False/g' example-1/libs/BUILD
   

2. Run the tests with --changed-since:

   pants --no-local-cache --changed-since=origin/main lint
   echo $?
   

   This returns:

   0
   

3. Check the list of modified files with --changed-since:

   pants --no-local-cache --changed-since=origin/main list
   echo $?
   

   This yields:

   16:55:35.41 [WARN] No targets were matched in goal `list`.
   0
   

4. Run the full linting:

   pants --no-local-cache lint ::
   echo $?
   

   This yields (truncated):

   (...)
   ✓ autoflake succeeded.
   ✓ bandit succeeded.
   ✕ black failed.
   ✕ flake8 failed.
   ✓ isort succeeded.
   ✕ pylint failed.
   
   (One or more formatters failed. Run `pants fmt` to fix.)
   16
   

5. Restore modified file:

   git restore example-1/libs/BUILD
   

Case 2: BUILD file is created

1. Create a new BUILD file in example-2/libs/BUILD file, copying the parent BUILD and effectively setting all the skip_* args to False instead of True:

   cp example-2/BUILD example-2/libs/BUILD
   sed -i '' 's/True/False/g' example-2/libs/BUILD
   git add example-2/libs/BUILD
   

2. Run the tests with --changed-since:

   pants --no-local-cache --changed-since=origin/main lint
   echo $?
   

   This returns:

   0
   

3. Check the list of modified files with --changed-since:

   pants --no-local-cache --changed-since=origin/main list
   echo $?
   

   This yields:

   17:00:53.17 [WARN] No targets were matched in goal `list`.
   0
   

4. Run the full linting:

   pants --no-local-cache lint ::
   echo $?
   

   This yields (truncated):

   (...)
   ✓ autoflake succeeded.
   ✓ bandit succeeded.
   ✕ black failed.
   ✕ flake8 failed.
   ✓ isort succeeded.
   ✕ pylint failed.
   
   (One or more formatters failed. Run `pants fmt` to fix.)
   16
   

5. Deleted the newly added file:

   git rm -f example-2/libs/BUILD