Bonjour,
Etes-vous sûr(e) de votre modification ?
D'après les données officielles (UrbIS), c'est bien "Avenue du Général de Gaulle" (même si j'ai en effet trouvé certaines plaques de rue indiquant "Avenue Général de Gaulle", mais pas toute).
Et si c'est le cas, vous avez oubliez de mettre à jour certains segments de la rue (je suppose que le nom est identique sur toute la rue).
Merci !

See changeset/81790826

I deleted relation(10786141) that was wrongly created and duplicated all the ways and buildings.

But it seems that there are still 2 relations for Avenue de Cortenbergh: relation(3094955) + relation(3151003) with 2 different postalcode but containing the same members.

Oh damn, you're right!
Something went quite wrong here, I'll check and fix it !

I'm currently checking streetnames in Brussels (compared to UrbIS - official data from Brussels Region).
It is (at least) now registered as "Rue Porselein" in UrbIS (official data) so I'll remove the "Rue de la Porselein" since streets signs + official data only mention "Rue Porselein" !

Wrong changeset comment ...
Correct one is : "Fix highway ref (N813)"

Wrong changeset comment ...
Correct one is : "Fix highway ref (N858)"

Also a duplicate : node/1819364866

Hey Redon, you created a duplicate.
Bar Muca was already in the map : way/486213187
You should delete this one !