Homegear - assign existing devices to newly discovered (but old) bridge?

Hi there,

I’ve moved my installation to Docker and upgraded from 2.3 to 2.4.
Now my homegear bridge is discovered as new, and all the existing devices (thermostats) show up as new.
I already have them as Things and Items though from my previous setup - is there any way to reassign the existing items to the newly discovered bridge?
Or how should I handle this?

Also: Everytime I change the containers, I seem to get a new Homegear entry in my Inbox…

Thank you,
Christoph