PHerison
(P Herison)
2
Hi and welcome to OSM and the forum
With every change on an OSM object (node, way, relation) the object gets a new version-number. A revert or rollback can be done by downloading the previous version of the object(s), replacing the values and upload the object(s) again (as a new version).
Can you post a link to the changeset(s) so we can take a look? (www.openstreetmap.org → Your friends profile → My changes)