When I enable a incorrect config file Nginx goes wrong without changing the config file status.

[leic4u]

1. Nginx works correctly.
2. then I enabled a incorrect config file.
3. nginx goes wrong without changing the config file status.
4. the file status won't become disable until I refresh the page.

Expected behavior:

The status of config file should be changed immediately after users click the enable or disable button.

[0xJacky]

Fix in 9a4174e, If you try to enable a wrong configuration file, nginxui will prevent you from doing so.