Added missing iterator advancement

lib/PgSQL_PreparedStatement.cpp

@@ -290,23 +290,19 @@ void PgSQL_STMT_Manager::ref_count_client___purge_stmts_if_needed() noexcept {
 		// use_count() == 1 indicates that only map_stmt_hash_to_info holds a reference,
 		// meaning there are no other references (from client or server) to this prepared statement.
 		// So we can safely remove this entry.
-		if (global_stmt_info.use_count() == 1) {
-			// Use memory_order_acquire to see latest refcount modifications
-			// Since write lock prevents NEW references, only existing raw pointers can race
-			if (global_stmt_info->ref_count_client.load(std::memory_order_acquire) == 0 &&
-				global_stmt_info->ref_count_server.load(std::memory_order_acquire) == 0) {
-
-				// Atomic counters
-				num_stmt_with_ref_client_count_zero.fetch_sub(1, std::memory_order_relaxed);
-				num_stmt_with_ref_server_count_zero.fetch_sub(1, std::memory_order_relaxed);
-
-				// Free ID
-				free_stmt_ids.push(global_stmt_info->statement_id);
-
-				// Safe erase from map while iterating
-				it = map_stmt_hash_to_info.erase(it);
-				remaining_removals--;
-			}
+		if (global_stmt_info.use_count() == 1 &&
+			global_stmt_info->ref_count_client.load(std::memory_order_acquire) == 0 && // Use memory_order_acquire to see latest refcount modifications
+			global_stmt_info->ref_count_server.load(std::memory_order_acquire) == 0) { // Since write lock prevents NEW references, only existing raw pointers can race
+			// Atomic counters
+			num_stmt_with_ref_client_count_zero.fetch_sub(1, std::memory_order_relaxed);
+			num_stmt_with_ref_server_count_zero.fetch_sub(1, std::memory_order_relaxed);
+
+			// Free ID
+			free_stmt_ids.push(global_stmt_info->statement_id);
+
+			// Safe erase from map while iterating
+			it = map_stmt_hash_to_info.erase(it);
+			remaining_removals--;
 		} else {
 			++it;
 		}