[FIX] Reading an EDF with preload=False and mixed frequency #13069
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Fixes #12897.
When loading an EDF with mixed sample frequencies and using
preload=False
and then requesting a channel that has lower sample frequency than the maximum resulted in anAssertionError
.What does this implement/fix?
This Assertion was in place to make sure that enough samples were read, but only made sense when one of the channels of maximum sample frequency was loaded.
It can simply be removed as I don't think that the case can actually occur. Additionally, there is another check for zeros a few lines later that serves a similar purpose.