GTX780 ti (368.69)
Broken: 2.78 1ee43c5
Short description of error
I'm using a Spot lamp with a DupliVerts, but the reflection of the dupli seems wrong.
The reflection of the dupli lights are only in the range of the original Spot lamp :
Exact steps for others to reproduce the error
Open the file and render the bottom view.
In the Lamp properties, play with the size of the spot to hide or reveal the reflection of the dupli lights.
Sorry if it's not a bug and thank you for your hard work !