Fix Issue 269

.gitignore

@@ -1,3 +1,5 @@
 target/
 .DS_Store
 .soroban/
+
+fix.md

creator-keys/tests/protocol_config_initialized.rs

@@ -1,6 +1,9 @@
 //! Tests for the is_protocol_config_initialized read-only method.
 
-use creator_keys::{CreatorKeysContract, CreatorKeysContractClient};
+mod contract_test_env;
+
+use contract_test_env::{register_creator_keys, set_protocol_fee_bps, test_env_with_auths};
+use creator_keys::{ContractError, CreatorKeysContract, CreatorKeysContractClient};
 use soroban_sdk::{testutils::Address as _, Env};
 
 #[test]
@@ -34,3 +37,17 @@ fn test_is_protocol_config_initialized_is_read_only() {
     assert_eq!(first_read, second_read);
     assert!(first_read);
 }
+
+#[test]
+fn test_protocol_config_state_is_unchanged_after_rejected_reinitialization() {
+    let env = test_env_with_auths();
+    let (client, _) = register_creator_keys(&env);
+    let admin = set_protocol_fee_bps(&env, &client, 9000u32, 1000u32);
+
+    let result = client.try_set_fee_config(&admin, &8000u32, &1000u32);
+    assert_eq!(result, Err(Ok(ContractError::InvalidFeeConfig)));
+
+    let config = client.get_fee_config().unwrap();
+    assert_eq!(config.creator_bps, 9000);
+    assert_eq!(config.protocol_bps, 1000);
+}