There is a bug with renaming tag folders in 7.3 where the Rename option is disabled in the menu. You can work around this by using the keyboard shortcut F2.
Indeed. It’s been fixed for 7.3.1.
Thanks for reporting this 
There is a bug with renaming tag folders in 7.3 where the Rename option is disabled in the menu. You can work around this by using the keyboard shortcut F2.
Indeed. It’s been fixed for 7.3.1.
Thanks for reporting this