MAINT Submoduletest

[adam2392]

Fixes #

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[PSSF23]

The current fork uses a previous version of partial_fit, which uses update_node as a function in tree.pyx. I don't have guarantee on whether it is valid. Likely the cause of some of the segfaults.

I still don't see the reason of such a switch (up-to-date partial_fit with segfaults). If you can point me to the log of actual errors it would be appreciated.

[adam2392]

Closed by #249