fix `get_tmp_cache` for Default solver (and some other default solver DAE fixes)

SciML / OrdinaryDiffEq.jl

High performance ordinary differential equation (ODE) and differential-algebraic equation (DAE) solvers, including neural ordinary differential equations (neural ODEs) and scientific machine learning (SciML)

https://diffeq.sciml.ai/latest/

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fix `get_tmp_cache` for Default solver (and some other default solver DAE fixes) #2251

Closed oscardssmith closed 3 months ago

oscardssmith commented 3 months ago

Previously, this was assuming that cache.cache1 was filled in which wasn't always true for DAEs.

oscardssmith commented 3 months ago

@ChrisRackauckas should we tag a new release with this?