FindData and SpreadsheetView show negative (truncated) 64-bit IdType numbers when running in parallel

Testing 5.4-RC2:

I have a reader code for particles with PointIds of 64bit size.

When running FindData to do extraction in parallel, Ids seems truncated to 32-bit size both in the FindData spreadsheet and in a regular Spreadsheet view. When NOT running in parallel, everything looks good. I have included a small test script with artificial data

UnstructuredGridWithIds.04.py

Edited Mar 23, 2021 by Mathieu Westphal

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