death fix

src/worker/sql.rs

@@ -1000,7 +1000,16 @@ SELECT child_character_id FROM falukant_data.child_relation WHERE father_charact
 "#;
 
 pub const QUERY_SET_CHARACTER_USER: &str = r#"
-UPDATE falukant_data.character SET user_id = $1, updated_at = NOW() WHERE id = $2;
+WITH cleared AS (
+    UPDATE falukant_data.character
+       SET user_id = NULL,
+           updated_at = NOW()
+     WHERE user_id = $1
+)
+UPDATE falukant_data.character
+   SET user_id = $1,
+       updated_at = NOW()
+ WHERE id = $2;
 "#;
 
 pub const QUERY_GET_CURRENT_MONEY: &str = r#"