You're not the first one doing this :-)

There's no simple way to merge the copies of the objects again.
For now I reverted your two changesets in 
https://www.openstreetmap.org/changeset/150910146

Whenever you have time to add the information to the proper objects, you need to load them directly from the API, e.g. in overpass-turbo using "Export to JOSM" or by directly entering the query into the download dialog in JOSM.

You can also access your now deleted data by using the reverter plugin in JOSM to load the points from my changeset into a separate layer in JOSM (without uploading, obviously).