Forcing objects to be reprocessed

[lonvia]

Sometimes it can be useful to mark certain OSM objects as changed so that osm2pgsql behaves as if it has read that object from an OSM change file. This can be used, for instance, if the Lua config changed in some specific way and you want to re-process some OSM objects that you know will be affected. This makes only sense in slim mode, of course.

To implement this, osm2pgsql basically would have to read that object from the middle and pretend that it just got it from the input file.