refactor: refs #7567 Minor change

db/routines/srt/procedures/moving_clean.sql

@@ -7,6 +7,8 @@ BEGIN
 	DECLARE vExpeditionFk INT;
 	DECLARE vBufferToFk INT;
 	DECLARE vBufferFromFk INT;
+	DECLARE vStateOutFk INT
+		DEFAULT (SELECT id FROM expeditionState WHERE `description` = 'OUT');
 	DECLARE vDone BOOL DEFAULT FALSE;
 	DECLARE vSorter CURSOR FOR
 		SELECT m.expeditionFk, m.bufferToFk, m.bufferFromFk
@@ -52,10 +54,10 @@ BEGIN
 				OR (bufferFk = vBufferFromFk AND `position` > 0)
 			FOR UPDATE;
 
-		UPDATE expedition 
+		UPDATE expedition
 			SET bufferFk = NULL,
 				`position` = NULL,
-				stateFk = (SELECT id FROM expeditionState WHERE `description` = 'OUT')
+				stateFk = vStateOutFk
 			WHERE id = vExpeditionFk;
 
 		UPDATE expedition
@@ -64,7 +66,6 @@ BEGIN
 				AND `position` > 0;
 
 		COMMIT;
-
 	END LOOP l;
 	CLOSE vSorter;
 END$$