Additional fix for #2629 with API

API object's notes fields now correctly preserve newlines.

app/Http/Requests/Request.php

@@ -237,6 +237,21 @@ class Request extends FormRequest
     }
 
 
+    /**
+     * Return string value, but keep newlines, or NULL if empty.
+     *
+     * @param string $field
+     *
+     * @return string
+     */
+    public function nullableNlString(string $field): string
+    {
+        if (!$this->has($field)) {
+            return null;
+        }
+        return app('steam')->nlCleanString((string)($this->get($field) ?? ''));
+    }
+
     /**
      * Parse and clean a string.
      *