Azure pipeline expressions causing linter error

Describe the bug

In one of our Azure pipeline files we have the following part:

      publishDocs:
        - docsArtifact: 'doorstop-html'
          docsSubdirectory: ''
          ${{ if eq(parameters.debugrun, true) }}:
            docsName: '$(docsName)-test'
          ${{ else }}:
            docsName: '$(docsName)'
          docsDescription: '$(docsDescription)'
          ${{ if startsWith(variables['Build.SourceBranch'], 'refs/heads/release/') }}:
            excludeBuildNumber: true
          ${{ else }}:
            excludeBuildNumber: false

This causes a linter error at the last ${{ else }}: saying that "Map keys must be unique"

Expected Behavior

No linter error

Current Behavior

Azure pipeline expressions seems to be parsed as map keys

Steps to Reproduce

See example in description

Environment

• Windows
• Mac
• Linux
• other (please specify)

Start with the Azure pipeline example in the issue and trace the linter diagnostic for the final ${{ else }}: expression. Determine where these expressions are treated as YAML map keys, then add regression coverage for the example and verify that it produces no duplicate-key error.