Combo breaks if not rendered while opened

[OverHash]

Consider the following code:

local ReplicatedStorage = game:GetService("ReplicatedStorage")

local Iris = require(ReplicatedStorage.Iris)

local Iris = Iris.Init()
Iris:Connect(function()
	local hasSelectedYet = Iris.State(nil)
	
	Iris.Window() do
		if not hasSelectedYet:get() then
			Iris.Combo({"My nice combo"}) do
				Iris.Selectable({"Select me", true}, { index = hasSelectedYet })
			end

			Iris.End()
		end
		
		Iris.End()
	end
end)

This code breaks Iris by removing a Combo while the dropdown is still open.

This happens by the user selecting "Select me" (from the dropdown open), which sets hasSelectedYet = true. The next Iris cycle will therefore not run the Iris.Combo() logic again, which causes the Combo to not render.

Unfortunately, this creates a problem today in Iris:

Before clicking "Select me":

After clicking "Select me":

(notably, the selection frame should not be there).

Additionally, clicking the selection frame causes an error:

  13:14:38.958  PreviewContainer is not a valid member of Frame "Iris_Combo"  -  Client - Combo:177
  13:14:38.958  Stack Begin  -  Studio
  13:14:38.958  Script 'ReplicatedStorage.Iris.widgets.Combo', Line 177  -  Studio - Combo:177
  13:14:38.959  Stack End  -  Studio

Even closing the Window will retain the PlayerGui.PopupScreenGui.ComboContainer instance.

[OverHash]

For the second issue, it looks like it's caused by Iris running

widgets.registerEvent("InputBegan", function(inputObject: InputObject)
  -- ...
end)

and importantly, when we "delete" the active Combo, Iris won't reset the state to be as though nothing is opened.

I modified the Combo script and will open a PR, but I'm not sure if it's a fool-proof fix.