Looks like it's left over from @%d0%a0%d1%83%d1%81%d1%82%d0%b0%d0%bc1997 which wasn't properly reverted. I've removed the nodes.

This changeset wasn't fully reverted. Why is this?

The user deleted correctly drawn buildings, businesses and roads and added back copy pasted buildings in random locations often way off from the actual building location. They have also not given a source for the address data they requested to be restored. https://osmcha.org/changesets/135070634?filters=%7B%22users%22%3A%5B%7B%22label%22%3A%22%D0%9C%D0%BE%D0%BB%D0%BE%D0%B4%D0%BE%D0%B918%22%2C%22value%22%3A%22%D0%9C%D0%BE%D0%BB%D0%BE%D0%B4%D0%BE%D0%B918%22%7D%5D%2C%22date__gte%22%3A%5B%7B%22label%22%3A%22%22%2C%22value%22%3A%22%22%7D%5D%7D

Please don't add temporary features.
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#REVIEWED_BAD #OSMCHA
Published using OSMCha: https://osmcha.org/changesets/135312776

This should have been immediately fixed.

Where does the address data come from?

Replacing correctly drawn buildings with a copy pasted building is not acceptable. All your changesets have been reverted.
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#REVIEWED_BAD #OSMCHA
Published using OSMCha: https://osmcha.org/changesets/135388608

osm.wiki/Keep_the_history
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#REVIEWED_BAD #OSMCHA
Published using OSMCha: https://osmcha.org/changesets/135070634

Why are valid buildings deleted?
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#REVIEWED_BAD #OSMCHA
Published using OSMCha: https://osmcha.org/changesets/135353951

What is the purpose of the duplicate relation?

What happened here?
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#REVIEWED_BAD #OSMCHA
Published using OSMCha: https://osmcha.org/changesets/135114615

A lot of these could be better resolved with a revert instead of manually deleting features.
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Published using OSMCha: https://osmcha.org/changesets/135183558

Consider uploading when changing regions to prevent large changesets. osm.wiki/Changeset#Geographical_size_of_changesets

Where can I find the import discussion?

You literally didn't filter them out. They're pet nodes because you're so attached to them.

If your pet nodes are so important at least make sure you don't mess up unrelated objects.

no roads were removed.

Bruh
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#REVIEWED_BAD #OSMCHA
Published using OSMCha: https://osmcha.org/changesets/135164717

What is this obsession with unnecessary overcomplication.

Can you link them?