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  "title": "Change default value of GeneDescription separation from true to false",
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  "debrief": "Copilot's refactor in chrxh/alien changes the default value of the separation member in GeneDescription from true to false, with existing tests kept passing by explicitly setting separation where needed. The change touched eight files across three commits. The pull request merged clean, with no changes requested, after 1.09 hours.",
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  "body_excerpt": "This PR implements the requested change to modify the default value of the `separation` member in `GeneDescription` from `true` to `false`, ensuring all existing tests continue to pass by explicitly setting separation values where needed.\n\n## Changes Made\n\n### Core Change\n- **`source/EngineInterface",
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   "title": "Implement hash functions for GenomeDescription to enable use as unordered_map key",
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   "title": "Rename genomeNodeIndex to nodeIndex in CellDescription, CellTO, and Cell classes",
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   "title": "Refactor DescriptionTestDataFactory to use deterministic values instead of random generation",
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