Recency checks

[rjust]

No description provided.

[rjust]

@mernst Can you please flesh out the details in README.md (Reproducibility section) and in init.sh (summary table with a list of major changes).

[mernst]

@rjust This looks good to me. However, CI is failing.

[rjust]

I fixed the bug-mining script that caused the test failure.

Depending on how we ensure reproducibility w.r.t. Locale settings, we should update the README and:

• either describe the additional unit test that we are adding, which asserts on the environment settings (timezone and locale settings)
• or remove the section about the Locale Provider if we patch the affected test files.