Assistant: Prevent sending queries multiple times (#3565)

Author: zenoachtig

packages/gitbook/src/components/AI/useAIChat.tsx

@@ -138,7 +138,7 @@ export function useAIChatController(): AIChatController {
     // Post a message to the AI chat
     const onPostMessage = React.useCallback(
         async (input: { message: string }) => {
-            const { messages } = globalState.getState().state;
+            const { query, messages } = globalState.getState().state;
 
             // For first message, update the ask parameter in URL
             if (messages.length === 0) {
@@ -150,6 +150,11 @@ export function useAIChatController(): AIChatController {
                 }));
             }
 
+            if (query === input.message) {
+                // Return early if the message is the same as the previous message
+                return;
+            }
+
             trackEvent({ type: 'ask_question', query: input.message });
 
             // Add user message and placeholder for AI response