Precompilation is broken due to constraint_power_magnitude_sqr_on_off

[noahrhodes]

the function _PM.constraint_power_magnitude_sqr_on_off(pm::_PM.AbstractQCWRModel, n::Int, i, f_bus, arc_from, tm) overwrite the PowerModels function by the same name, breaking precompilation.

However, QC is not currently a supported formulation for these problems, and has no test coverage. This dead code breaks precompilation for no good reason.

[Robbybp]

Just hit this myself. Just noting here that adding __precompile__(false) to the top of the PowerModelsRestoration.jl file is another workaround.