Autofocus not working

[viganella]

I have a powerselect component within a BsModal -> form.element (ember bootstrap).
When opening the dropdown the autofocus does not work. Same code tried with powerselect multiple (just for test purposes) works just fine.
<PowerSelect @searchEnabled={{true}} @searchField="name" @options={{this.sortedCities}} @selected={{el.value}} @placeholder="Select cities" @onChange={{action "onCityChange"}} @onKeydown={{action "createCityValue"}} as |city| > <span>{{city.name}}</span> </PowerSelect>

        Note: this works fine outside <BsModal> </BsModal> block.