fix: reserve id entries

contracts/escrow/src/lib.rs

@@ -215,6 +215,11 @@ impl EscrowContract {
         let next_id = id.checked_add(1).ok_or(Error::Overflow)?;
         env.storage().instance().set(&DataKey::MatchCount, &next_id);
         env.storage().persistent().set(&DataKey::GameId(m.game_id.clone()), &true);
+        env.storage().persistent().extend_ttl(
+            &DataKey::GameId(m.game_id.clone()),
+            MATCH_TTL_LEDGERS,
+            MATCH_TTL_LEDGERS,
+        );
 
         // Add match ID to both players' match lists
         let mut player1_matches: soroban_sdk::Vec<u64> = env

contracts/escrow/src/tests/ttl.rs

@@ -24,6 +24,27 @@ fn test_ttl_extended_on_create_match() {
     assert_eq!(ttl, crate::MATCH_TTL_LEDGERS);
 }
 
+#[test]
+fn test_game_id_ttl_extended_on_match_reservation() {
+    let (env, contract_id, _oracle, player1, player2, token, _admin) = setup();
+    let client = EscrowContractClient::new(&env, &contract_id);
+    let game_id = String::from_str(&env, "reserved_game_ttl");
+
+    client.create_match(
+        &player1,
+        &player2,
+        &100,
+        &token,
+        &game_id,
+        &Platform::Lichess,
+    );
+
+    let ttl = env.as_contract(&contract_id, || {
+        env.storage().persistent().get_ttl(&DataKey::GameId(game_id.clone()))
+    });
+    assert_eq!(ttl, crate::MATCH_TTL_LEDGERS);
+}
+
 #[test]
 fn test_ttl_extended_on_deposit() {
     let (env, contract_id, _oracle, player1, player2, token, _admin) = setup();