Fix bug due to missing lookup field.

[jkmarx]

• Add missing lookup field for node viewset

[codecov]

Codecov Report

Merging #3346 into develop will decrease coverage by 0.04%.
The diff coverage is 100%.

@@             Coverage Diff             @@
##           develop    #3346      +/-   ##
===========================================
- Coverage    68.57%   68.53%   -0.05%     
===========================================
  Files          372      372              
  Lines        24270    24227      -43     
  Branches       942      942              
===========================================
- Hits         16644    16604      -40     
+ Misses        7626     7623       -3

Impacted Files	Coverage Δ
refinery/data_set_manager/views.py	63.36% <100%> (-1.88%)	⬇️

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update 8ac1a8f...1e28b01. Read the comment docs.