Hi,

In this situation the crossing tag should have been removed rather than the node itself as it was part of a building way.

I've restored the building geometry in changeset/175133725

Instead of using oneway=-1 you can simply reverse the way. oneway=yes is much more intuitive than oneway=-1

oneway=-1

You've mapped some of these buildings as triangles which is incorrect. Most of these buildings should be rectangular. You should also press "Q" after drawing a building to orthagonalise its shape.
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#REVIEWED_BAD #OSMCHA
Published using OSMCha: https://osmcha.org/changesets/174100154

Thanks for the tip, but it was slightly more complicated than that. I had to disconnect a node (ALT+J) from a few ways and one I couldn't do because I had to undelete a deleted node as well (I found a partial revert easier for that). Normal dragged nodes are easy enough to restore their location without a revert, I agree :)