Fix: bug in index with description handling.

Issue for description being incorrectly picked up, is because index was collecting all descriptions, even if they were labels on schemas as reported in https://github.com/daveshanley/vacuum/issues/239

index/extract_refs.go

@@ -177,8 +177,10 @@ func (index *SpecIndex) ExtractRefs(node, parent *yaml.Node, seenPath []string,
                         IsSummary: false,
                     }
 
-                    index.allDescriptions = append(index.allDescriptions, ref)
-                    index.descriptionCount++
+                    if !utils.IsNodeMap(ref.Node) {
+                        index.allDescriptions = append(index.allDescriptions, ref)
+                        index.descriptionCount++
+                    }
                 }
 
                 if n.Value == "summary" {

index/extract_refs_test.go

@@ -0,0 +1,37 @@
+// Copyright 2023 Princess B33f Heavy Industries / Dave Shanley
+// SPDX-License-Identifier: MIT
+
+package index
+
+import (
+    "github.com/stretchr/testify/assert"
+    "gopkg.in/yaml.v3"
+    "testing"
+)
+
+func TestSpecIndex_ExtractRefs_CheckDescriptionNotMap(t *testing.T) {
+
+    yml := `openapi: 3.1.0
+info:
+  description: This is a description
+paths:
+  /herbs/and/spice:
+    get:
+      description: This is a also a description
+      responses:
+        200:
+          content:
+            application/json:
+              schema:
+                type: array
+                properties:
+                  description:
+                   type: string
+   `
+    var rootNode yaml.Node
+    _ = yaml.Unmarshal([]byte(yml), &rootNode)
+    c := CreateOpenAPIIndexConfig()
+    idx := NewSpecIndexWithConfig(&rootNode, c)
+    assert.Len(t, idx.allDescriptions, 2)
+    assert.Equal(t, 2, idx.descriptionCount)
+}