Groovy file confusion with Sample Project

I’ve noticed something a little ‘head scratching’ with the Sample Web Services Testing Project, that I’ll try to explain.
For the first Test Case “TC01_REST_Verify Email from list of Comments” there are 2 groovy files on the filesystem:

From looking at them it would seem as though Script1482934254805.groovy is the correct one to use, as the other only contains the declarations.

Now when I import the project on a macbook it appears as though Script1487841631587.groovy is actually being opened in the studio. I can see this because there are no items listed. Now if I rename Script1487841631587.groovy (both name and extension) then refresh the studio I can see the items listed.
Note that I have tested this on Mac, Windows & Linux and ONLY see it on Mac.
So my questions are:

  1. Is this a known issue?
  2. What’s the purpose of having multiple groovy files in that folder?