Irrefutable pattern doesn't count properly for a calculation of a function return type

[enaydanov]

Bug description

# pylint: disable=missing-docstring

def repro(selector: str) -> dict:
    match selector:
        case "a":
            return {"selected": "a"}
        case _:  # can be a simple capture pattern too
            raise ValueError(f"Unknown value: {selector}")


print(repro("a")["selector"])

Configuration

No response

Command used

pylint repro.py

Pylint output

************* Module repro
repro.py:9:6: E1136: Value 'repro('a')' is unsubscriptable (unsubscriptable-object)

Expected behavior

---

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Pylint version

pylint 2.15.5
astroid 2.12.12
Python 3.11.0 (main, Nov  2 2022, 05:40:18) [GCC 7.5.0]

OS / Environment

No response

Additional dependencies

No response

[jacobtylerwalls]

Duplicate of #5288