Please check your imports. Many objects contain foreign tags that don't look like they should be in OSM, e.g.

CdOH 	99S0000000023256080
DateCreati 	2006-09-21 07:50:25.715+02
NatureSE 	Plan d'eau - réservoir
OrigineSE 	artificiel
Persistanc 	intermittent
SaliniteSE 	0
StatutOH 	Validé
gid 	440664