DEBUG: Cython failures

[mroeschke]

Trying to get a Cython reproducer for #61249

[mroeschke]

First piece of repro from 8837a71

cpdef timedelta debug_2():
    cdef int64_t val = -420000000000
    us, remainder = divmod(val, 1000)
    if remainder >= 500:
        us += 1
    return timedelta(microseconds=us)

Windows 3.13t: datetime.timedelta(microseconds=906795)
Other Platforms: datetime.timedelta(days=-1, seconds=85980)

[mroeschke]

Opened cython/cython#6786 as a result of this investigation so closing