Numerical separators behave inconsistently

[Lucas Fiegl]

Using numerical separators (such as 1_000_000) seems to behave inconsistently, ignoring everything after the first separator upon conversion to a different precision.

Reproduction:

    sage: z = 1_0000.000000000000000000000000000000000000
    sage: z # works as expected without the conversion
    10000.000000000000000000000000000000000000
    sage: RR(z)
    1.00000000000000

SageMath version 9.5, Release Date: 2022-01-30, Using Python 3.10.6

OS: Ubuntu 22.04.1

[TB]

This reproduces in Sage 9.7. Thanks for the bug report.

Can you please open a ticket for this? The original ticket for PEP 515
in Sage: https://trac.sagemath.org/ticket/28490

Regards,
TB

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