Fixed db upgrade loading forbidden nicks

modules/core/db_plain.cpp

@@ -337,7 +337,7 @@ static void LoadNickCore(const std::vector<Anope::string> &params)
 	/* Clear default flags */
 	nc->ClearFlags();
 
-	nc->pass = params[1];
+	nc->pass = params.size() > 1 ? params[1] : "";
 
 	Log(LOG_DEBUG_2) << "[db_plain]: Loaded NickCore " << nc->display;
 }

src/tools/db-upgrade.cpp

@@ -191,6 +191,8 @@ int main(int argc, char *argv[])
 		if (line.substr(0, 2) == "NC")
 		{
 			std::vector<std::string> parts = BuildStringVector(line);
+			if (parts.size() < 3)
+				continue;
 			std::string password = parts[2];
 			size_t colon = password.find(':');
 			if (colon != std::string::npos && password.substr(0, colon) != "plain")