There is a problem in dropshipment creation in specific case below:
1) Create sale order with two lines and keep same product in both the lines
2) when the dropshipment is created, it consists customer move for first sale line, skips the second line completely. This has started happening since the purchase request merges to a single purchase line.
In this particular case logic here should expect that there could be two purchase requests per purchase line since the merging of purchase line from purchase requests.