step 3 of drug scenario does not clear search when going back

src/js/drugs.js

@@ -118,7 +118,7 @@ function initializeStoryContet($introContainer, params){
         let stepsToCarryOut = [];
 
         if (this._direction == 'backward') {
-            if (this._currentStep == 2 || this._currentStep == 1) {
+            if (this._currentStep == 1) {
                 stepsToCarryOut.push(0)
             }