Warn users about interpolate expression renumbering#4572
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dham
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Sep 24, 2025
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If the dual argument to
interpolateis a function space, we currently renumberTestFunctionsinside the primal expression intoTrialFunctions, which is confusing. We should remove this renumbering but since this is an API change we need to warn users.I have a FEniCS/ufl#422 PR which adds some checks to
ufl.Interpolate. Once this passes we can get rid of the junk inside the Firedrakeinterpolatefactory function and have it just return anInterpolate.