Dataset problem: FGOALS-f3-L sftlf

[mwjury]

Describe the dataset issue
FGOALS-f3-L sftlf has unit %, values are <= 1.

• Data file has been changed by you in any way (if you answer yes the issue will be void and closed, we are not supporting custom-made datasets that present problems, it is your resposability to fix those problems): No
• Project (CMIP5/CMIP6/OBS/obs4mips/etc): CMIP6
• Full dataset description (fill out as many as you know, please):
  • dataset: FGOALS-f3-L
  • experiment: historical
  • mip: fx
  • grid: gn
  • version: v20191120
  • variable used: sftlf, tas
  • data version: v20191120
• Pointer to existing copy of data on ESGF node (it would be very useful if you could provide a physical fullpath to the file(s) that are causing the problem, e.g. on CEDA Jasmin or DKRZ):
  /work/ik1017/CMIP6/data/CMIP6/CMIP/CAS/FGOALS-f3-L/historical/r1i1p1f1/fx/sftlf/gr/v20191120/sftlf_fx_FGOALS-f3-L_historical_r1i1p1f1_gr.nc
  /work/ik1017/CMIP6/data/CMIP6/CMIP/CAS/FGOALS-f3-L/historical/r1i1p1f1/Amon/tas/gr/v20190927/tas_Amon_FGOALS-f3-L_historical_r1i1p1f1_gr_185001-201412.nc
• Other notes and mentions:
  Masking leads to error down the line:
  TypeError: 'NoneType' object is not iterable

@valeriupredoi @zklaus

Please attach
recipe_CMIP6_fgoals_f3_l_sftlf_issue.txt

Cheers 🍺

[mwjury]

I made a merge request #667 . Though it does not work and I have no idea why.
Could you give me a hand please.