Bug report

When raising inside except* block and the caught exception wasn't an ExceptionGroup originally, then raised exception doesn't get wrapped in ExceptionGroup:

try:
    try:
        raise TypeError(1)  # prints ValueError(3)
        raise ExceptionGroup('', [TypeError(2)])  # prints ExceptionGroup('', [ValueError(3)])
    except* TypeError:
        raise ValueError(3)
except BaseException as e:
    print(repr(e))

Your environment

• CPython versions tested on: 3.11.3
• Operating system and architecture: Windows 11 / Ubuntu 22.04

Linked PRs

• gh-103590: do not wrap a single exception raised from a try-except* #103665
• [3.11] gh-103590: do not wrap a single exception raised from a try-except* #104094
• gh-103590: mention that the change is included in 3.11.4 and clarify except* documentation #104095