With 2.1 servers, our 1.8 clients are showing an incorrect date of:
1901-12-14 12:45:52.000000000 -0800
for newly created files.
Andreas has pointed us at a patch for
LU-221 that looks like the cause of the problem.
We are in production with some 2.1 servers now, so we will need a quick fix on this. The
LU-221 cure may have been worse than the disease, so I am going to start a build of our tree with that commit reverted.