TST: Add tests for old issues
- [x] closes #13427
- [x] closes #13432
- [x] closes #13501
- [x] closes #13569
- [x] closes #13872
- [x] closes #13912
- [x] closes #13934
- [x] closes #14018
- [x] tests added / passed
- [x] Ensure all linting tests pass, see [here](https://pandas.pydata.org/pandas-docs/dev/development/contributing.html#code-standards) for how to run them

