Fix #4312
diff --git a/system/libraries/Form_validation.php b/system/libraries/Form_validation.php
index a158225..c221258 100644
--- a/system/libraries/Form_validation.php
+++ b/system/libraries/Form_validation.php
@@ -415,12 +415,9 @@
 	 */
 	public function run($group = '')
 	{
-		// Do we even have any data to process?  Mm?
-		$validation_array = empty($this->validation_data) ? $_POST : $this->validation_data;
-		if (count($validation_array) === 0)
-		{
-			return FALSE;
-		}
+		$validation_array = empty($this->validation_data)
+			? $_POST
+			: $this->validation_data;
 
 		// Does the _field_data array containing the validation rules exist?
 		// If not, we look to see if they were assigned via a config file