Changing the express_domain convar after a failed version check doesn't appear to re-check/re-register

[brandonsturgeon]

Reproduce:

• Set the express_domain to something that resolves but doesn't respond, like loopback.cfcservers.org:12345
• Start the server
• Observe failed revision checks
• Set express_domain to gmod.express
• Observe literally nothing happen 😔

After changing the convar, Express should basically re-initialize, attempting to check the version and re-register again

[brandonsturgeon]

Disregard, this may have been a fluke with my local dev environment. I can confirm that it runs properly.