reset the has directory flag

Signed-off-by: asharani-murugesh <asharani.murugesh@in.bosch.com>

hawkbit-ui/src/main/java/org/eclipse/hawkbit/ui/artifacts/upload/UploadHandler.java

@@ -108,6 +108,8 @@ public class UploadHandler implements StreamVariable, Receiver, SucceededListene
     public OutputStream receiveUpload(final String fileName, final String mimeType) {
         this.fileName = fileName;
         this.mimeType = mimeType;
+        //reset has directory flag before upload
+        view.setHasDirectory(false);
         try {
             if (view.validate()) {
                 if (view.checkForDuplicate(fileName)) {

hawkbit-ui/src/main/java/org/eclipse/hawkbit/ui/artifacts/upload/UploadLayout.java

@@ -633,4 +633,8 @@ public class UploadLayout extends VerticalLayout {
         return uiNotification;
     }
 
+    
+    public void setHasDirectory(Boolean hasDirectory) {
+        this.hasDirectory = hasDirectory;
+    }
 }