Cancel a pending computer name change in Windows Server 2012 R2

While attempting to troubleshoot some issues, I changed the name of a server using the System Properties window (Control Panel > System > Change settings > Computer Name > Change...).

After making this change I did not restart the machine, so the name change is still pending a restart. The issue has since been resolved, so I no longer need to change the computer name. However, the option to change the name is now disabled until I restart the machine.

I'd like to know if there's a way to "cancel" this pending name change and just leave the name as it was. Some Googling implies there is a single registry entry I could change, but I want to make sure I cover all my bases.