sihui
(SiHui)
2
If you are using the latest snapshot with jsondb support (instead of mapdb) you could easily change files
\userdata\jsondb\org.eclipse.smarthome.core.thing.Thing.json
\userdata\jsondb\org.eclipse.smarthome.config.discovery.DiscoveryResult.json
\userdata\jsondb\org.eclipse.smarthome.core.thing.link.ItemChannelLink.json
with the new id.
If not: time to upgrade 