Is it possible to do this in 0.19-alpha using the optimize! function? (Will this be supported some time in the final 0.19 release if it isn’t currently?)
There’s no one-liner for this anymore. I opened an issue to track the feature request: https://github.com/JuliaOpt/JuMP.jl/issues/1611. However, I don’t consider it blocking for the 0.19 release.