bug: Parent class' __init__ docstring merged into class docstring even if inherited members are not picked up

[pawamoy]

Description of the bug

The merge_init_into_class option will merge the docstring of parent __init__ methods into the class docstring even if configuration does not select inherited members.

To Reproduce

• render a class which has a parent class
• set merge_init_into_class to true
• set inherited_members to false
• observe the parent docstring being merged into the class one

Full traceback

/

Expected behavior

The parent docstring shouldn't be merged into the class one if the parent __init__ method is not selected, or if inherited members are not picked up at all.

Environment information

python -m mkdocstrings_handlers.python.debug  # | xclip -selection clipboard

• System: /
• Python: cpython 3.11.5
• Environment variables:
• Installed packages:
  • mkdocs v1.6.1
  • mkdocstrings v0.26.1
  • mkdocstrings-python v1.11.1
  • griffe v1.3.2

Additional context

Brought up in the Matrix channel.

[pawamoy]

I decided to keep to showing the source of the inherited __init__ method (even if not selected through inherited_members), as well as the signature. I believe these blocks of info are still valuable, and only the "docstring merging" was to fixed here.