Everything worked great for selecting seats via airfrance.com on 006 issued tickets until sometime in the last couple of months, when the functionality broke. IME
- If seats were requested and assigned by DL at time of ticket issuance, they will stick
- klm.com will show those seats, and possibly be able to change them (I liked my seat so didn't try to save it)
- airfrance.com is now useless
+1 to tweeting Air France... I've found them very helpful in the past.