GitLab Renovate MRs not getting reviewers assigned when rangeStrategy is widen

[jwkellyiii]

How are you running Renovate?

Self-hosted Renovate

Which platform you running Renovate on?

GitLab (.com or self-hosted)

Which version of Renovate are you using?

42.95.1

Please tell us more about your question or problem

I have two package rules:

"packageRules": [
    {
      "groupName": "peer dependencies: patch & minor",
      "labels": [
        "peerDependencies: patch & minor"
      ],
      "matchDepTypes": [
        "peerDependencies"
      ],
      "matchUpdateTypes": [
        "minor",
        "patch"
      ],
      "dependencyDashboardApproval": false,
      "rangeStrategy": "widen",
      "prPriority": 2,
      "reviewersFromCodeOwners": true,
      "expandCodeOwnersGroups": true, 
      "filterUnavailableUsers": true,
      "reviewersSampleSize": 2
    },
    {
      "groupName": "dependencies: patch & minor",
      "labels": [
        "dependencies: patch & minor"
      ],
      "matchDepTypes": [
        "dependencies"
      ],
      "matchUpdateTypes": [
        "minor",
        "patch"
      ],
      "dependencyDashboardApproval": false,
      "prPriority": 3,
      "reviewersFromCodeOwners": true,
      "reviewersSampleSize": 2
    },
],

when renovate creates the dependencies: patch & minor MRs, the are correctly assigned two members from the CODEOWNERS file located in the repo at .gitlab/CODEOWNERS. However, when renovate creates the peer dependencies: patch & minor MRs, no reviewrs are assigned and in the renovate logs it says DEBUG: No CODEOWNERS file found. Why does renovate work for the dependencies MRs but not the peerDependencies MRs? Copilot and Gemini think it has something to with the "rangeStrategy": "widen" configuration, but offer nothing but non-working solutions.