OK - that's now done in https://www.openstreetmap.org/changeset/164504900 .  I just added the missing relations to the stretch of untagged way in the gap, and checked that the relations were valid with JOSM's validator (see https://www.openstreetmap.org/user/SomeoneElse/diary/406398 for that).
Slightly confusingly here, there are two similarly-named relations here - there is https://www.openstreetmap.org/relation/4189620 (An Roisín) and https://www.openstreetmap.org/relation/4211826 (An Roisín Riabhach).  These do have different logainm references and URLs, though.
