bug in variants.incoming after editting a transfer

[Jur1]

I noticed that when you edit a transfer the variant.incoming property of the variant object is not populated correctly. Products that are added to an already existing transfer doens't have variant.incoming=true. 

Steps to reproduce this bug:

1. Create a transfer and save it
2. Choose transfer is pending
3. Edit the transfer by adding some new products (B)
4. Check the variant.incoming property of the variant object of these new products (B)

These products (B) have now incoming items, but the variant.incoming=false...? Does anyone else have the same issue? And does anyone have a solution to this (besides never editting a transfer).

Jur