ControlAddItem appears not to update index.

Test code:

MyGui := Gui()
; ┌─────────────┐
; │  Combo Box  │
; └─────────────┘
ThirdText4 := MyGui.Add("Text", "x10 cBlue", "ComboBox")
MyCB := MyGui.Add("ComboBox", "x10 y+10 r10 -Limit", ["Orange","Purple","Fuchsia","Lime","Aqua"])

CB_Button := MyGui.Add("Button", "x10 y+10", "Show CB Selection")
CB_AddBtn := MyGui.Add("Button", "x140 yp", "Add 'Yellow' to CB")
CB_Button.OnEvent("Click", "CB_ButtonClicked")
CB_AddBtn.OnEvent("Click", "AddYellow")

MyGui.Show()

AddYellow() {
    ControlAddItem("Yellow", MyCB)
}

; ┌─────────────────────┐
; │  ComboBox Callback  │
; └─────────────────────┘
CB_ButtonClicked() {
    MsgBox(MyCB.Text, "CB Selection")
}

This is not a new bug, I didn’t test guitest.ahk thoroughly enough.

Clicking “Add ‘Yellow’ to CB” does add the item to the ComboBox, but then selecting it throws an unhandled exception. If you click ‘Continue’, the selection does appear in the Edit.

In case that’s not legible, the error message says: “InvalidArgument=Value of ‘5' is not valid for ‘index’. (Parameter 'index’)

Actual value was 5”

???

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