Setting tz_offset causes test fixture to freeze on yield in v1.1.0

[primal100]

Have an issue with 1.1.0, works fine with 1.0.0.

@pytest.fixture
def fixed_timestamp(timestamp, tz_offset) -> datetime.datetime:
    freezer = freezegun.freeze_time(timestamp, tz_offset=tz_offset)
    freezer.start()
    yield datetime.datetime.now()
    freezer.stop()

This code hangs at

yield datetime.datetime.now()

If I remove tz_offset it works.

[EvertonSA]

any help from any dev would be appreciated

[MartinThoma]

I also ran into this issue. In my case, the issue did not happen with 1.0.0 and it get a freezing test (with high CPU usage) with 1.1.0 (it might also be related to the usage of multiprocessing; I'll check again when this one is fixed.)