Spinner in the button with dynamic text -- is it possible?

Seems like spinner only shown with static text.
With dynamic inner text it doesn’t show. Like this:

    <button id="btnform1" class="btn btn-primary" dmx-bind:disabled="state.executing || !input1sum.value" type="submit" dmx-on:click="btnform1.disable()" dmx-text="state.executing ? 'Отправляем...' : 'ОТПРАВИТЬ ОТВЕТЫ'">ОТПРАВИТЬ ОТВЕТЫ
    <span class="spinner-border spinner-border-sm" role="status"></span>
    </button>