Using default mapping in config/cfe.py causes PET+CFE calibration to fail

[Ben-Choat]

Short description explaining the high-level reason for the new issue.

Current behavior

Using default mapping in config/cfe.py causes PET+CFE calibration to fail, but removing causes PR checks for build (3.7) and build (3.8) to fail.

I submitted a PR commenting out the default mapping, Update cfe.py - remove QINSUR as default variable name mapping #90, but configuration checks fail with below error.
It appears the tests expect the default mapping to be present.:

=========================== short test summary info ============================
FAILED python/ngen_conf/tests/test_cfe.py::test_name_map_default - KeyError: 'atmosphere_water__liquid_equivalent_precipitation_rate'
FAILED python/ngen_conf/tests/test_multi.py::test_name_map - KeyError: 'atmosphere_water__liquid_equivalent_precipitation_rate'
======================== 2 failed, 101 passed in 0.46s =========================
Error: Process completed with exit code 1.

Expected behavior

Calibrating with PET+CFE works.

Steps to replicate behavior (include URLs)

1. Run calibration with PET+CFE. (Note SLOTH is required with CFE).

Screenshots