Equal hashes for non-isomorphic bipartite graphs with edge labels

[dcoudert]

Fixes #33255

[codecov-commenter]

Codecov Report

Base: 88.59% // Head: 88.58% // Decreases project coverage by -0.01% ⚠️

Coverage data is based on head (d3618f1) compared to base (fbb4127).
Patch coverage: 93.10% of modified lines in pull request are covered.

Additional details and impacted files

@@             Coverage Diff             @@
##           develop   #35146      +/-   ##
===========================================
- Coverage    88.59%   88.58%   -0.01%     
===========================================
  Files         2140     2140              
  Lines       396961   396987      +26     
===========================================
+ Hits        351677   351683       +6     
- Misses       45284    45304      +20     

Impacted Files	Coverage Δ
src/sage/graphs/bipartite_graph.py	90.04% <87.50%> (-0.09%)	⬇️
src/sage/graphs/digraph.py	92.73% <100.00%> (+0.02%)	⬆️
src/sage/graphs/generic_graph.py	89.13% <100.00%> (+0.01%)	⬆️
src/sage/graphs/graph.py	93.79% <100.00%> (+<0.01%)	⬆️
...e/combinat/cluster_algebra_quiver/mutation_type.py	52.25% <0.00%> (-0.72%)	⬇️
src/sage/rings/polynomial/ore_polynomial_ring.py	89.40% <0.00%> (-0.43%)	⬇️
src/sage/cpython/_py2_random.py	76.03% <0.00%> (-0.42%)	⬇️
src/sage/combinat/constellation.py	91.18% <0.00%> (-0.41%)	⬇️
src/sage/quadratic_forms/ternary_qf.py	66.73% <0.00%> (-0.39%)	⬇️
src/sage/modular/arithgroup/arithgroup_perm.py	92.57% <0.00%> (-0.38%)	⬇️
... and 15 more

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[github-actions]

Documentation preview for this PR is ready! 🎉
Built with commit: d3618f1

[dcoudert]

Ready for review.

[mkoeppe]

I've changed the description to use the magic word "Fixes ", which makes GitHub mark the PR as one that should automatically close the linked issue when merged.

[dcoudert]

Thank you. I'm learning every day new functionalities of GitHub.

[roed314]

LGTM