I am still seeing this issue on my two jenkins sites. One jenkins setup is Jenkins 1.651.3 + Copy Artifact Plugin 1.38, and the other jenkins setup is Jenkins 2.7.1 + Copy Aritifact Plugin 1.38. The OS of both setups is Ubuntu 14.04 LTS.
Below are repro steps:
1. One project P1 archives one file plus one symlink as its build artifacts like:
directory1/file1, directory2/symlink2 where symlink2 is a link to ../directory1/file1.
2. Another project P2 copies P1's artifacts to its workspace at the beginning of its build.
Expected: both file1 and symlink2 are copied to P2's workspace.
Actual: only file1 is copied to P2's workspace.
Please let me know if you need more information.