fix for ERS restart problem

[mvertens]

Description of changes

fix for ERS restart problem

Specific notes

This fixes problems in cesm ERS tests introduced in #221

Contributors other than yourself, if any: jedwards4b

CMEPS Issues Fixed: issue not introduced

Are changes expected to change answers?

• [x] bit for bit
• [ ] different at roundoff level
• [ ] more substantial

Any User Interface Changes (namelist or namelist defaults changes)?

• [x] Yes - by default write_restart_at_endofrun is only true if REST_OPTION is 'none'
• [ ] No

Testing performed if application target is CESM:(either UFS-S2S or CESM testing is required):

• [ ] (recommended) CIME_DRIVER=nuopc scripts_regression_tests.py
  • machines:
  • details (e.g. failed tests):
• [ ] (recommended) CESM testlist_drv.xml
  • machines and compilers:
  • details (e.g. failed tests):
• [ ] (optional) CESM prealpha test
  • machines and compilers
  • details (e.g. failed tests):
• [x] (other) please described in detail
  • machines and compilers cheyenne/intel
  • details (e.g. failed tests): validated that previous broken test ERS_Vnuopc_Ln5.f19_f19_mg17.F2000Nuopc.cheyenne_intel.cam-nuopc_cap now works

Testing performed if application target is UFS-coupled:

• [ ] (recommended) UFS-coupled testing
  • description:
  • details (e.g. failed tests):

Testing performed if application target is UFS-HAFS:

• [ ] (recommended) UFS-HAFS testing
  • description:
  • details (e.g. failed tests):

Hashes used for testing:

• [ ] CESM:
  • repository to check out: https://github.com/ESCOMP/CESM.git
  • hash: cesm2_3_alpha05b
• [ ] UFS-coupled, then umbrella repostiory to check out and associated hash:
  • repository to check out:
  • branch:
  • hash:
• [ ] UFS-HAFS, then umbrella repostiory to check out and associated hash:
  • repository to check out:
  • branch:
  • hash: