Validation in a multiple compound is displayed on first compound

I did the following in the go green demo:

1. In the custom compound Address: Make the field street required
2. Add a MULTIPLE address field to the event documenttype
3. Open an event document, add 2 addresses.
4. Fill in the Street field in the first compound.
5. Try to save the document.
6. The validation kicks in and highlights the first compound instead of the second. (see screenshot)