<p>I'd say this is technically not feasible, as objects could be marked as invisible on the database (they never get deleted), although they haven't been reverted. Also, you could do partial reverts, further complicating this situation.</p>
<p>Some revert tools (e.g. <a href="https://github.com/woodpeck/osm-revert-scripts">https://github.com/woodpeck/osm-revert-scripts</a>) already leave a comment in the changesets they have reverted.</p>
<p>If you want something similar for other tools like the JOSM reverter, you should create an issue on the JOSM trac instead.</p>

<p style="font-size:small;-webkit-text-size-adjust:none;color:#666;">—<br />You are receiving this because you are subscribed to this thread.<br />Reply to this email directly, <a href="https://github.com/openstreetmap/openstreetmap-website/issues/2323?email_source=notifications&email_token=AAK2OLNRUG6J2YU6K7E46YTP752PBA5CNFSM4IETTH2KYY3PNVWWK3TUL52HS4DFVREXG43VMVBW63LNMVXHJKTDN5WW2ZLOORPWSZGOD2GNCKI#issuecomment-512545065">view it on GitHub</a>, or <a href="https://github.com/notifications/unsubscribe-auth/AAK2OLPNW754SVSGDDOGJETP752PBANCNFSM4IETTH2A">mute the thread</a>.<img src="https://github.com/notifications/beacon/AAK2OLMS2WSSJJGEC5CRIQLP752PBA5CNFSM4IETTH2KYY3PNVWWK3TUL52HS4DFVREXG43VMVBW63LNMVXHJKTDN5WW2ZLOORPWSZGOD2GNCKI.gif" height="1" width="1" alt="" /></p>
<script type="application/ld+json">[
{
"@context": "http://schema.org",
"@type": "EmailMessage",
"potentialAction": {
"@type": "ViewAction",
"target": "https://github.com/openstreetmap/openstreetmap-website/issues/2323?email_source=notifications\u0026email_token=AAK2OLNRUG6J2YU6K7E46YTP752PBA5CNFSM4IETTH2KYY3PNVWWK3TUL52HS4DFVREXG43VMVBW63LNMVXHJKTDN5WW2ZLOORPWSZGOD2GNCKI#issuecomment-512545065",
"url": "https://github.com/openstreetmap/openstreetmap-website/issues/2323?email_source=notifications\u0026email_token=AAK2OLNRUG6J2YU6K7E46YTP752PBA5CNFSM4IETTH2KYY3PNVWWK3TUL52HS4DFVREXG43VMVBW63LNMVXHJKTDN5WW2ZLOORPWSZGOD2GNCKI#issuecomment-512545065",
"name": "View Issue"
},
"description": "View this Issue on GitHub",
"publisher": {
"@type": "Organization",
"name": "GitHub",
"url": "https://github.com"
}
}
]</script>