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ping @jeremiedbb @lesteve since you already know about the issue. It should be a quick fix.
Sorry about this mistake, I probably merged forgetting to check all the fixtures.

Which is weird cause the pylatest_conda_forge_mkl job has SKLEARN_SKIP_NETWORK_TESTS=0 :/

The code is not that easy to follow ... I am not 100% sure, but I think this change has the side effect to download more datasets than previously when running network cases in some cases e.g. when not running doctests. Is it really important, probably not?

Which is weird cause the pylatest_conda_forge_mkl job has SKLEARN_SKIP_NETWORK_TESTS=0 :/

Network tests are run only on scheduled runs. I don't remember why exactly but I was involved in this change (maybe there were previously run during scipy-dev tests and it was annoying for some reason) ... Edit: #28383 there was some mysterious slowness of dataset downloads inside pytest when moving the scipy-dev from Python 3.11 to Python 3.12 ...

Network tests are run only on scheduled runs. I don't remember why exactly but I was involved in this change (maybe there were previously run during scipy-dev tests and it was annoying for some reason) ...

Oh right, I read too quickly

I think this change has the side effect to download more datasets than previously when running network cases in some cases e.g. when not running doctests. Is it really important, probably not?

I don't think there are cases where we enable network tests but disable docstring tests, so I think it's fine to merge as is and not bother too much

OK let's merge this one then!