Legend toggle errors with `vlines`

[TomRottier]

It would be nice to be able to toggle the visibility of lines created with vlines in the legend the same way you can with other lines, but currently it seems you can't:

using GLMakie
vlines([0, 1]; label="a")
axislegend(; position=:cc)

and clicking on the plot in the legend gives the stack trace:

Cannot attach input with name visible - already exists!
Stacktrace:
  [1] error(s::String)
    @ Base .\error.jl:44
  [2] _add_input!(func::Function, attr::ComputePipeline.ComputeGraph, key::Symbol, value::Bool)
    @ ComputePipeline C:\Users\t26313tr\.julia\packages\ComputePipeline\soTSa\src\ComputePipeline.jl:717
  [3] add_input!
    @ C:\Users\t26313tr\.julia\packages\ComputePipeline\soTSa\src\ComputePipeline.jl:696 [inlined]
  [4] setproperty!(plot::LineSegments{Tuple{Vector{Point{2, Float64}}}}, key::Symbol, val::Bool)
    @ Makie C:\Users\t26313tr\.julia\packages\Makie\Vn16E\src\compute-plots.jl:94
  [5] (::Makie.var"#toggle_visibility!##0#toggle_visibility!##1"{Bool})(p::LineSegments{Tuple{Vector{Point{2, Float64}}}})
    @ Makie C:\Users\t26313tr\.julia\packages\Makie\Vn16E\src\makielayout\blocks\legend.jl:1160
  [6] foreach_plot(f::Makie.var"#toggle_visibility!##0#toggle_visibility!##1"{Bool}, entry::LegendEntry)
    @ Makie C:\Users\t26313tr\.julia\packages\Makie\Vn16E\src\makielayout\blocks\legend.jl:1151
  [7] toggle_visibility!
    @ C:\Users\t26313tr\.julia\packages\Makie\Vn16E\src\makielayout\blocks\legend.jl:1159 [inlined]
  [8] _toggle_hovered_legend_visibilities!(mpos::Tuple{Float64, Float64}, entry_groups::Vector{Tuple{Any, Vector{LegendEntry}}}, entryshades::Vector{Vector{Box}})
    @ Makie C:\Users\t26313tr\.julia\packages\Makie\Vn16E\src\makielayout\blocks\legend.jl:21
  [9] (::Makie.var"#2144#2145"{Events, Vector{Vector{Box}}, Observable{GeometryBasics.HyperRectangle{2, Int64}}, Observable{Vector{Tuple{Any, Vector{LegendEntry}}}}})(event::Makie.MouseButtonEvent)
    @ Makie C:\Users\t26313tr\.julia\packages\Makie\Vn16E\src\makielayout\blocks\legend.jl:365
 [10] notify
    @ C:\Users\t26313tr\.julia\packages\Observables\YdEbO\src\Observables.jl:206 [inlined]
 [11] setindex!
    @ C:\Users\t26313tr\.julia\packages\Observables\YdEbO\src\Observables.jl:123 [inlined]
 [12] (::GLMakie.var"#mousebuttons#mousebuttons##0"{Observable{Makie.MouseButtonEvent}})(window::GLFW.Window, button::GLFW.MouseButton, action::GLFW.Action, mods::Int32)
    @ GLMakie C:\Users\t26313tr\.julia\packages\GLMakie\vdrwE\src\events.jl:104
 [13] _MouseButtonCallbackWrapper(window::GLFW.Window, button::GLFW.MouseButton, action::GLFW.Action, mods::Int32)
    @ GLFW C:\Users\t26313tr\.julia\packages\GLFW\wA4ue\src\callback.jl:46
 [14] macro expansion
    @ C:\Users\t26313tr\.julia\packages\GLFW\wA4ue\src\GLFW.jl:34 [inlined]
 [15] PollEvents
    @ C:\Users\t26313tr\.julia\packages\GLFW\wA4ue\src\glfw3.jl:773 [inlined]
 [16] pollevents(screen::GLMakie.Screen{GLFW.Window}, frame_state::Makie.TickState)
    @ GLMakie C:\Users\t26313tr\.julia\packages\GLMakie\vdrwE\src\screen.jl:559
 [17] (::GLMakie.var"#on_demand_renderloop##0#on_demand_renderloop##1"{GLMakie.Screen{GLFW.Window}})()
    @ GLMakie C:\Users\t26313tr\.julia\packages\GLMakie\vdrwE\src\screen.jl:1093
 [18] with_context(f::GLMakie.var"#on_demand_renderloop##0#on_demand_renderloop##1"{GLMakie.Screen{GLFW.Window}}, context::GLFW.Window)
    @ GLMakie.GLAbstraction C:\Users\t26313tr\.julia\packages\GLMakie\vdrwE\src\GLAbstraction\GLAbstraction.jl:59
 [19] on_demand_renderloop(screen::GLMakie.Screen{GLFW.Window})
    @ GLMakie C:\Users\t26313tr\.julia\packages\GLMakie\vdrwE\src\screen.jl:1092
 [20] renderloop(screen::GLMakie.Screen{GLFW.Window})
    @ GLMakie C:\Users\t26313tr\.julia\packages\GLMakie\vdrwE\src\screen.jl:1120
 [21] (::GLMakie.var"#start_renderloop!##0#start_renderloop!##1"{GLMakie.Screen{GLFW.Window}})()
    @ GLMakie C:\Users\t26313tr\.julia\packages\GLMakie\vdrwE\src\screen.jl:945

• Makie v0.24.8, GLMakie v0.13.8

[ffreyer]

Fixed in #5409/#5484