Pickle API: Fix memory leak#1662
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franzpoeschel merged 1 commit intoopenPMD:devfrom Aug 14, 2024
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clang-sanitizer found this on #1432, but the bug affects the dev branch already.
Since the Pickle API returns handles that own the Series, they MUST be copies, we cannot turn the internal handles into owning handles as they again are owned by the Series, creating a reference cycle.