Adding value mappings through mass update from other templates on templates is broken

Hi Zabbix devs!

In Zabbix 6.0 we can use Mass update | Value mapping  and then Add from to add value mappings to a template from other templates:

In Zabbix 6.2 this functionality is broken because of the added Template groups and the removal of Host groups for templates:

The new Template groups simply do not show up at all in Mass update.

If you ask me this is a Major issue, as with the removal of global value mappings, updating template their value mappings with values from other templates in Zabbix 6.2 is now completely umanagable.