> The function of the contractor in such cases is nearly identical to that of an employee; however, because the contractor is not an employee, providing a copy of software to the contractor could be considered distribution. This is one of the thornier areas of GPLv2 interpretation, and it is discussed in more detail below
> A full discussion of the tenets of international copyright law bearing upon this issue is beyond the scope of this article, but it seems likely the question would have different answers outside the U.S [...] Therefore, the triggers for copyleft obligations, based on activity outside the U.S., may have a lower threshold than in the U.S.
> The function of the contractor in such cases is nearly identical to that of an employee; however, because the contractor is not an employee, providing a copy of software to the contractor could be considered distribution. This is one of the thornier areas of GPLv2 interpretation, and it is discussed in more detail below
> A full discussion of the tenets of international copyright law bearing upon this issue is beyond the scope of this article, but it seems likely the question would have different answers outside the U.S [...] Therefore, the triggers for copyleft obligations, based on activity outside the U.S., may have a lower threshold than in the U.S.
https://www.jolts.world/index.php/jolts/article/view/66/125