[petsc-dev] Propose a change for PetscObjectDestroyOptionsHandlers()

[Jed Brown]

Lisandro Dalcin <dalcinl at gmail.com> writes:

> PetscObjectDestroyOptionsHandlers() do not check if the registered
> destroy routine is NULL. In general, the destroy routines are
> optional. Should we fix this in maint?

Yes, does this break something now?  It is not used by anything in
PETSc, petsc4py, SLEPc, or TAO, so hopefully it's not an urgent fix.