Only add a row if none exist

Author: wilr

src/ManyField.php

@@ -294,10 +294,11 @@ public function FieldList() {
             foreach ($this->value as $record) {
                 $output->push($this->generateRow($index++, $record));
             }
+        } else {
+            // display one if none exist.
+            $output->push($this->generateRow($index++));
         }
 
-        $output->push($this->generateRow($index++));
-
         return $output;
     }