Fix singleton on last dimension error in prelude #175
Merged
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Description
This PR addresses an issue in the prelude wrapper that returned the wrong number of dimensions if the input had a singleton in the last dimension. The fix looks at the input and compares it to the output to return the appropriate number of dimensions. This allows to also fix a case where both last dimensions would be 1. I've added tests for all cases (X,Y,1), (X,1) and (X,1,1)
Linked issues
Fixes #174