set mag owner when creating a char

src/login/character.rs

@@ -266,6 +266,8 @@ async fn new_character<EG: EntityGateway + Clone>(entity_gateway: &mut EG, user:
         character_id: character.id,
     }).await?;
 
+    entity_gateway.change_mag_owner(&mag.id, &character).await?;
+
     let mut monomates = Vec::new();
     for _ in 0..4usize {
         let monomate = entity_gateway.create_item(