xlims ylims

[jverzani]

In https://discourse.julialang.org/t/implicitequations-plot-return-empty-plot/94117/5 the issue of xlims and ylims arises:

using Plots, ImplicitEquations
f(x, y) = y^2 - 3y - 4 - x; g(x,y) = x + y
plot(f ⩵ 0, xtick=-7:1:5, xlims=(-7,5), ylims=(-5,5))
plot!(g ⩵ 0);  plot!((f ≦ 0) & (g ≦ 0))

The plot! call uses (-5,5) x (-5,5) and not the (-7,5) x (-5,5)

The current recipe uses xlims = get(plotattributes, :xlims, (-5,5)). It seems to be suggested that xlims --> (-5,5) should work (but it doesnt). The use of xlims = get!(plotattributes, :xlims, (-5,5)) doesn't see the initial xlims specification.