fix(server/mysql): use upsert for db.saveStash

Still needed for some limited cases.
Resolves #1389.

modules/mysql/server.lua

@@ -3,6 +3,7 @@ if not lib then return end
 local Query = {
  SELECT_STASH = 'SELECT 1 AS `exists`, data FROM ox_inventory WHERE owner = ? AND name = ?',
  UPDATE_STASH = 'UPDATE ox_inventory SET data = ? WHERE owner = ? AND name = ?',
+ UPSERT_STASH = 'INSERT INTO ox_inventory (owner, name, data) VALUES (?, ?, ?) ON DUPLICATE KEY UPDATE data = VALUES(data)',
  INSERT_STASH = 'INSERT INTO ox_inventory (owner, name) VALUES (?, ?)',
  SELECT_GLOVEBOX = 'SELECT plate, glovebox FROM `{vehicle_table}` WHERE `{vehicle_column}` = ?',
  SELECT_TRUNK = 'SELECT plate, trunk FROM `{vehicle_table}` WHERE `{vehicle_column}` = ?',
@@ -128,7 +129,7 @@ function db.savePlayer(owner, inventory)
 end
 
 function db.saveStash(owner, dbId, inventory)
- return MySQL.prepare(Query.UPDATE_STASH, { inventory, owner and tostring(owner) or '', dbId })
+ return MySQL.prepare(Query.UPSERT_STASH, { owner and tostring(owner) or '', dbId, inventory })
 end
 
 function db.loadStash(owner, name)