Retrieving emptied relations

Hi List,

by chance I came across an empty cycling relation which I know it was full of members. Sadly, the user who removed all members also deleted his/her account, so I couldn't ask for explanations.

OSM relation history isn't particularly useful, since the information is 363 members in previous version #77 and no mention of members in latest #78. Deep history tool isn't useful either, since it reports only tags changes. Eventually, I've found useful Deep Diff tool, which reports the full history of members in's and out's.

How can I restore the relation to version #77?

I tried JOSM changeset reverter without success. Maybe I did something wrong, or there's something I cannot understand: I expected that reverting changeset where members were removed, should rebuild the members list, but reverter wasn't able to, returning only relation with zero members.

Since it is rather easy rewrite relation in a textual form, can I upload someway the below text instead? In case, are there some bad side effects?

relation 6798010
name:it=Mobilità ciclabile tra Italia e Slovenia
name:sl=Kolesarska mobilnost med Slovenijo in Italijo
network=icn
ref=bimobis
route=bicycle
type=route

wy 109568228
wy 107298107
[...]
wy 165283326