Looking at this again, it has also been incorrectly offset...are you doing that to everything you touch?

Please read https://wiki.openstreetmap.org/wiki/Montr%C3%A9al#Bing_Maps_Offset
it also applies to Longueuil. When using the Bing imagery, you need to set the offset to 0.6,-1.54 or your data will be offset incorrectly