[CrossVersionBreakingChange] Paths for one error in a spec are empty

[mikeharder]

Azure/azure-rest-api-specs#31095

{
    "type": "Result",
    "level": "Error",
    "message": "The new version has a different 'pattern' value than the previous one.",
    "code": "ConstraintChanged",
    "id": "1036",
    "docUrl": "[https://github.com/Azure/openapi-diff/tree/master/docs/rules/1036.md",](https://github.com/Azure/openapi-diff/tree/master/docs/rules/1036.md%22,)
    "time": "2024-10-23T15:32:17.618Z",
    "groupName": "stable",
    "extra": {
        "mode": "Update"
    },
    "paths": []
},

https://dev.azure.com/azure-sdk/internal/_build/results?buildId=4260264&view=logs&j=8f628bfe-7d8d-5bf3-e141-37106862c4f5&t=723dfc11-d28f-5d74-45f1-663cde6746b4&l=2732

<testcase classname="unknown" name="ConstraintChanged" file="unknown">
  <failure message="| Rule |&#xA;|------|&#xA;|❌ [1036 - ConstraintChanged] .../>
</testcase>

https://dev.azure.com/azure-sdk/internal/_build/results?buildId=4260264&view=logs&j=8f628bfe-7d8d-5bf3-e141-37106862c4f5&t=723dfc11-d28f-5d74-45f1-663cde6746b4&l=11726