Fix hdf5 dataset specific config

openPMD / openPMD-api

:floppy_disk: C++ & Python API for Scientific I/O

https://openpmd-api.readthedocs.io

GNU Lesser General Public License v3.0

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Fix hdf5 dataset specific config #1600

Closed franzpoeschel closed 6 months ago

franzpoeschel commented 6 months ago

Follow-up to #1591

That PR has a bug (concerning only the newly added behavior). The global dataset config is buffered in the HDF5 backend, but I accidentally manipulated it upon reading, meaning that the chunking configs can leak into other dataset.

This fixes that.