patch for piecemeal appending

[codecov[bot]]

Codecov Report

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

Project coverage is 91.34%. Comparing base (2c8a77f) to head (b018a8b). Report is 13 commits behind head on dev.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## dev #201 +/- ## ========================================== + Coverage 91.32% 91.34% +0.01% ========================================== Files 15 15 Lines 1936 1940 +4 ========================================== + Hits 1768 1772 +4 Misses 168 168 ```

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