Fix segfault when using element.parent() from Python

[saraedum]

Checklist

• [x] Added an entry in doc/news/.
• [x] Added a test/benchmark for this change.

Dependencies

• [x] https://github.com/conda-forge/conda-forge-repodata-patches-feedstock/pull/414

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Comparison is base (14760be) 92.23% compared to head (be9e763) 92.23%.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## master #260 +/- ## ========================================== - Coverage 92.23% 92.23% -0.01% ========================================== Files 105 105 Lines 2125 2124 -1 ========================================== - Hits 1960 1959 -1 Misses 165 165 ```

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