Ubuntu 14.04 (Trusty) running on a Lenovo laptop T500.
Short description of error
When scaling the right object along the x-axis with snap turned on,
the snap doesn't snap to the object on the left.
Exact steps for others to reproduce the error
Open the attached .blend file.
Select the object on the right.
Scale along the x-axis to the left
Notice that snap doesn't work.