Cannot reliably compare uint64 values to integers?

According to this program any value between ...cde0 and ...cdef is equal to uint64 value of ...cdef which was a big surprise

import numpy
a = numpy.uint64(0x1234567890abcdef)
if a == 0x1234567890abcde0:
    print("BUG!")

Seems like uint64 is converted to float even when it is compared against standard integers which was another big surprise for me.

Probably related to #5612.

Looks more like a bug in uint64: #5745

Closing as duplicate of gh-22624

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