Missing docstring for descriptor alias

[armoha]

Environment data

• Language Server version: v2024.9.100
• OS and version: Windows 10 22H2 19045.4894 x64
• Python version (and distribution if applicable, e.g. Anaconda): 3.11.9
• python.analysis.indexing: true
• python.analysis.typeCheckingMode: off

Code Snippet

class Foo:
    class Descriptor:
        def __get__(self, obj, objtype=None):
            return self

    a = b = c = Descriptor()
    "this docstring is only visible for Foo.c"

Repro Steps

1. input above code

Expected behavior

Same docstring is shown for Foo.a/b/c

Actual behavior

Docstring is missing while autocompletion and type hint work fine.