Make LogEncoder more robust

[krzentner]

This hopefully fixes #2328

[codecov[bot]]

Codecov Report

Merging #2329 (58874e8) into master (3492f44) will decrease coverage by 0.03%. The diff coverage is 83.78%.

:exclamation: Current head 58874e8 differs from pull request most recent head af07a6c. Consider uploading reports for the commit af07a6c to get more accurate results

@@            Coverage Diff             @@
##           master    #2329      +/-   ##
==========================================
- Coverage   91.25%   91.21%   -0.04%     
==========================================
  Files         199      199              
  Lines       10985    10987       +2     
  Branches     1601     1601              
==========================================
- Hits        10024    10022       -2     
- Misses        696      701       +5     
+ Partials      265      264       -1     

Impacted Files	Coverage Δ
src/garage/experiment/experiment.py	92.91% <83.78%> (+0.05%)	:arrow_up:
src/garage/np/_functions.py	77.39% <0.00%> (-1.74%)	:arrow_down:
src/garage/sampler/multiprocessing_sampler.py	90.12% <0.00%> (-1.24%)	:arrow_down:

---

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 3492f44...af07a6c. Read the comment docs.