with evolve_ice turned off, beta_internal differs on restart

[billsacks]

From @billsacks on August 9, 2016 18:21

This is a low priority issue, but @whlipscomb suggests that we track it so that we can look into it at some point.

In my testing of the most recent code within CESM, I discovered that, when I turn ice evolution off (evolve_ice = .false.), restart runs fail due to differences in the beta_internal field when running with glissade. (They also fail due to differences in uflx and vflx with glide.)

Specifically, I observed this with test ERS_D_Ly3.f09_g16_gl4.TGIS2.yellowstone_pgi.cism-noevolve from r79699 on branch https://svn-ccsm-models.cgd.ucar.edu/glc/branches/develop_update_2016_07, which points to the code base in PR #58 . I also observed this in the n06 branch tag on that branch, which did calving_init even when ice evolution was off. (i.e., this problem occurs whether or not you do calving in initialization.)

Copied from original issue: E3SM-Project/cism-piscees#59