fix: preserve inputs when switching task type only if it was text and it goes to a text field

Signed-off-by: Julien Veyssier <julien-nc@posteo.net>

Author: julien-nc

src/components/AssistantTextProcessingForm.vue

@@ -438,15 +438,17 @@ export default {
 			this.$refs?.translateForm?.setDefaultValues(true)
 			this.$refs?.assistantFormInputs?.setDefaultValues(true)
 
-			// keep last prompt if new task type has text input
-			if (lastInput && this.selectedTaskType?.inputShape?.input) {
-				this.myInputs.input = lastInput
-			}
-			if (lastInput && this.selectedTaskType?.inputShape?.source_input) {
-				this.myInputs.source_input = lastInput
-			}
-			if (lastInput && this.selectedTaskType?.inputShape?.text) {
-				this.myInputs.text = lastInput
+			// keep last prompt if it's a string and if the new task type has text input
+			if (lastInput && (typeof lastInput === 'string' || lastInput instanceof String)) {
+				if (this.selectedTaskType?.inputShape?.input && this.selectedTaskType?.inputShape?.input.type === SHAPE_TYPE_NAMES.Text) {
+					this.myInputs.input = lastInput
+				}
+				if (this.selectedTaskType?.inputShape?.source_input && this.selectedTaskType?.inputShape?.source_input.type === SHAPE_TYPE_NAMES.Text) {
+					this.myInputs.source_input = lastInput
+				}
+				if (this.selectedTaskType?.inputShape?.text && this.selectedTaskType?.inputShape?.text.type === SHAPE_TYPE_NAMES.Text) {
+					this.myInputs.text = lastInput
+				}
 			}
 		},
 		onSyncSubmit() {