Comment 6 for bug 1266675

I have the same problem. First, I did a small test with few users (about 2 to update and one to added) and it worked, but when I would like to push all the list of my job users (20 lines with 5 first one already registered), I have this error.

Ubuntu Trusty server 14.04.2 - Linux 3.13.0-49-generic x86_64 x86_64 x86_64 GNU/Linux