error when use right arrow keyboard in prompt textarea

[ccarruitero]

When writing the prompt for a bot and try to move around with keyboard to correct something. Using right arrow keyboard doesn't works. It generates an error in browser console:

Error invoking action "keydown->autocomplete#keydown"

 TypeError: this.filteredItems[this.index] is undefined
    completeHighlightedSelection autocomplete_controller-8fbf0286293f13e48773f4c0714f263715866c1a14fd932647ba0211582daaa0.js:74
    keydown autocomplete_controller-8fbf0286293f13e48773f4c0714f263715866c1a14fd932647ba0211582daaa0.js:51
    invokeWithEvent stimulus.js:362
    handleEvent stimulus.js:329
    handleEvent stimulus.js:31

Object { identifier: "autocomplete", controller: {…}, element: textarea#prompt_textarea.w-full.shadow-xl.rounded-md.bg-gray-700.text-white.pl-3, index: 3, event: keydown }

Browser: Firefox 112.0.2

[obie]

fixed