adding else case for one diff

Author: ntarakad-aws

packages/core/src/amazonqGumby/chat/controller/controller.ts

@@ -430,6 +430,8 @@ export class GumbyController {
         const oneOrMultipleDiffsSelection = message.formSelectedValues['GumbyTransformOneOrMultipleDiffsForm']
         if (oneOrMultipleDiffsSelection === CodeWhispererConstants.multipleDiffsMessage) {
             transformByQState.setMultipleDiffs(true)
+        } else {
+            transformByQState.setMultipleDiffs(false)
         }
         this.messenger.sendOneOrMultipleDiffsMessage(oneOrMultipleDiffsSelection, message.tabID)
         // perform local build

packages/core/src/codewhisperer/models/model.ts

@@ -808,6 +808,7 @@ export class TransformByQState {
         this.errorLog = ''
         this.customBuildCommand = ''
         this.intervalId = undefined
+        this.produceMultipleDiffs = false
     }
 }