Drag & drop from OS X Finder of an existing filename with non ascii characters created by Drive creates 2 documents instead of versioning the existing doc

Typically with the attached file:

• Copy it to a locally synchronized folder
• Drag & drop it to the corresponding folder on the server

Second file should be detected as the same filename than the one created by Drive (thus versioned) but it is not => 2 documents with the same name are created.

Debugging it seems that the filename sent by Drive is not encoded the same way as with Drag & drop.
Indeed, from Drive it is NFC normalized, from Finder Drag&drop is is not.