Most of the building footprints you added are valid, and you also mapped buildings wih more complex shapes however, the footprints are composed of excess nodes. You only need to click on the corners of buildings. You made a good decision to use Mapbox as an imagery source in this area, but check the primary source before saving your changes, becasue you added buildings that are no longer there. Please press q to square the corners of rectilinear buildings after tagging the area you draw. Please keep this feedback in mind when contributing in future. Thank you for your contribution. If you want to experience the OSM community or to get timely feedback from other mappers; I recommend that you attend a mapathon. You can find events here https://osmcal.org/
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            #REVIEWED_BAD #OSMCHA
            Published using OSMCha: https://osmcha.org/changesets/154290326
            