How to investigate missing amenities?
Hello,
Several months (maybe an year?) ago I had thoroughly mapped an area. Now as I check it, all the amenities are missing. It was a square with pharmacies, shops, banks, marketplace, parkings - various stuff.
`highway` ways are intact, but maybe about 20 tagged nodes and polygons are gone. I tried looking at the [history](http://www.openstreetmap.org/history#map=19/42.15083/24.74497), but it is full of bogus edits that have nothing to do with my area. It shows worldwide changesets that happen to contain my area as well and it is not usable at all.
How can I proceed to find out what happened to all the stuff there?