Periodicity does not propagate to new nodes created by "Refine by splitting"
To reproduce, load this file, Mesh 2D, Refine by splitting, and save. The $Periodic
block only contains nodes that were present before refinement. I tested with 4.6.0-git-187b945
.
SetFactory("OpenCASCADE");
Rectangle(1) = {-0.5, -0.5, 0, 1, 1, 0};
Characteristic Length {:} = .5;
Periodic Curve {2} = {4} Translate {1, 0, 0};