gileri: I am not sure either that the contact:* scheme is the best way to map multiple POI's under the same address, but it is the one which is recommended here in France. Anyway, there seems to be a consensus that duplicated addresses (with addr:* keys) wrong.

-Ralf.

Hello,

You have changed in Montrouge the contact:* keys of some shops in addr:*. This is a problem since the adresses are now duplicated (there are already adress nodes
for the buildings), as you can see easily on osmose. Had you looked into the history of these nodes you would have seen that I had previously changed the addr:* into contact:* precisely for that reason.

Voir aussi osm.wiki/WikiProject_France/WikiProject_Base_Adresses_Nationale_Ouverte_%28BANO%29#cite_ref-1