From b322bcb32bfb0e207d6c7da005951a8da1e1ed1a Mon Sep 17 00:00:00 2001
From: Christopher Schleiden <cschleiden@github.com>
Date: Wed, 11 Jan 2023 13:28:53 -0800
Subject: [PATCH] Do not add duplicate entries to description dictionary

---
 .../src/completion/descriptionDictionary.test.ts             | 3 ++-
 actions-expressions/src/completion/descriptionDictionary.ts  | 5 +++++
 2 files changed, 7 insertions(+), 1 deletion(-)

diff --git a/actions-expressions/src/completion/descriptionDictionary.test.ts b/actions-expressions/src/completion/descriptionDictionary.test.ts
index 960c289..67811f4 100644
--- a/actions-expressions/src/completion/descriptionDictionary.test.ts
+++ b/actions-expressions/src/completion/descriptionDictionary.test.ts
@@ -12,7 +12,8 @@ describe("description dictionary", () => {
   it("does not add duplicate entries", () => {
     const d = new DescriptionDictionary();
     d.add("ABC", new StringData("val1"));
-    d.add("abc", new StringData("val2"));
+    d.add("ABC", new StringData("val2"));
+    d.add("abc", new StringData("val3"));
 
     expect(d.pairs()).toEqual([{key: "ABC", value: new StringData("val1")}]);
   });
diff --git a/actions-expressions/src/completion/descriptionDictionary.ts b/actions-expressions/src/completion/descriptionDictionary.ts
index 8e07bb3..08a4eda 100644
--- a/actions-expressions/src/completion/descriptionDictionary.ts
+++ b/actions-expressions/src/completion/descriptionDictionary.ts
@@ -19,6 +19,11 @@ export class DescriptionDictionary extends Dictionary {
   }
 
   override add(key: string, value: ExpressionData, description?: string): void {
+    if (this.get(key) !== undefined) {
+      // Key already added, ignore
+      return;
+    }
+
     super.add(key, value);
     if (description) {
       this.descriptions.set(key, description);