Trufflehog hangs indefinitely on scanning a Jupyter notebook

gistfile1.txt

$ trufflehog git https://github.com/dinvlad/pyro-cov.git \
    --branch bkotzen-CEPI --max-depth 2 \
    --since-commit 9cd031577750f88648a0cee5f8d6ed781f717c6b --trace

DEBU[0000] running version dev                          
DEBU[0000] running version dev                          
DEBU[0000] running with up to 1 workers                 
DEBU[0000] loaded 2 decoders                            
DEBU[0000] loaded 694 detectors total, 694 with verification enabled. 0 with verification disabled 
DEBU[0000] Cloning remote Git repo without authentication 
DEBU[0016] Git repo local path: /tmp/trufflehog3956541362 
🐷🔑🐷  TruffleHog. Unearth your secrets. 🐷🔑🐷

{"level":"debug","time":"2022-08-22T17:41:37-04:00","message":"executing: /usr/bin/git -C /tmp/trufflehog3956541362 log -p -U0 f4c7c698d63bee4893941138fbf76e987c8c73e9"}
TRAC[0016] Scanning file from git                        commit=f4c7c698d63bee4893941138fbf76e987c8c73e9 file=subset_metadata_file.ipynb
TRAC[0016] Scanning file from git                        commit=f6b214fa7376e88896062857e42105257faf6706 file=Untitled.ipynb
TRAC[0016] Scanning file from git                        commit=f6b214fa7376e88896062857e42105257faf6706 file=subset_metadata_file.ipynb
DEBU[0016] reached max depth                            
DEBU[0016] Scanning complete. Scan time: 0.131167