Mosen,
Ricks post shows there were some more deliveries occuring than you mentioning. It shows the traditionally good relations between Saxony and France were underlined with the supply of new machines.
Or is the Champagne so well-known for stormy and misty weather? There is also the suspicion that at least one pilot was volunteering to land on the other side after the failed French offensive.
The source are the Kofl 3 reports or better: my handwritten and therefore hard to read notes about victories and losses.
VBR
Rammjaeger