Test failure on CI for HOMFLY polynomial computation in src/sage/knots/link.py:homfly_polynomial

[user202729]

Steps To Reproduce

2025-02-15T07:54:18.9692710Z sage -t --warn-long 5.0 --random-seed=284243679660708560464167856336900787895 src/sage/knots/link.py
2025-02-15T07:54:18.9715940Z **********************************************************************
2025-02-15T07:54:18.9733990Z File "src/sage/knots/link.py", line 3046, in sage.knots.link.Link.homfly_polynomial
2025-02-15T07:54:18.9746580Z Failed example:
2025-02-15T07:54:18.9847560Z     L2.homfly_polynomial()
2025-02-15T07:54:18.9887290Z Expected:
2025-02-15T07:54:18.9906800Z     -L*M^-1 - L^-1*M^-1
2025-02-15T07:54:19.0007500Z Got:
2025-02-15T07:54:19.0117680Z     0
2025-02-15T07:54:20.2136600Z **********************************************************************
2025-02-15T07:54:20.2190310Z 1 item had failures:
2025-02-15T07:54:20.2190900Z    1 of  31 in sage.knots.link.Link.homfly_polynomial
2025-02-15T07:54:20.2312900Z     [595 tests, 1 failure, 1.87s wall]

https://github.com/sagemath/sage/actions/runs/13342977036/job/37269963573#step:10:9512

Checklist

• I have searched the existing issues for a bug report that matches the one I want to file, without success.
• I have read the documentation and troubleshoot guide