TST: Add regression tests for old issues
- [x] closes #7893
- [x] closes #8856
- [x] closes #9188
- [x] closes #9406
- [x] closes #9952
- [x] closes #10336
- [x] closes #10710
- [x] closes #11479
- [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

