[v634] Backport of recent fixes to the 6.34 release branch#18233
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Fix by @guitargeek. The RooWSFactoryTool expression handler was not correctly matching branckets, leading to failures when importing valid JSON filed with RooProdPdf objects.
The addition of the __array__ utility to std::vector Python proxies causes a bug where the resulting array is a single dimension, causing loss of data when converting to numpy arrays, for >1dim vectors. The recursive nature of this function, passes each subarray (pydata) to the next call and only the final buffer is cast to a lowlevel view and resized (in VectorData), resulting in only the first 1D array to be returned. See root-project#17729 Since this C++ pythonization was added with the upgrade in 6.32, and is only defined and used recursively, the safe option is to disable this function and no longer add it. It is temporarily removed to prevent errors due to -Wunused-function
guitargeek
requested review from
bellenot,
dpiparo,
lmoneta and
vepadulano
as code owners
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This PR is motivated especially by these two bugfixes:
__array__from std::vector pythonizations #18208