Autocomplete does not work when used in form within Alert

[akrishnamo]

Issue:
The autocomplete component works fine when the form is used by itself, but not when the form is invoked from an Alert. It doesn't show any suggestions, nor does it throw any errors

Steps to reproduce:

1. Create a form with an Autocomplete component
2. Test it by itself with some suggestions (works)
3. Open the same form from inside alert alert(content=form_with_autocomplete() ) (does not work)