The spec for this action:
https://www.adobe.com/content/dam/acom/en/devnet/pdf/pdfs/PDF32000_2008.pdf#G11.2111850
An example of a form using this action:
https://www2.illinois.gov/rev/forms/reg/Documents/reg-1-mr.pdf
}
          
          elementData.userValue = event.target.value;
          this.linkService.eventBus?.dispatch("dispatcheventinsandbox", {
            source: this,
            detail: {
              id,
              name: "Keystroke",
              value: event.target.value,
              willCommit: true,
              commitKey,
              selStart: event.target.selectionStart,
              selEnd: event.target.selectionEnd,
            },
          });
        });
        const _blurListener = blurListener;
        blurListener = null;
        element.addEventListener("blur", event => {
          if (this._mouseState.isDown) {
            
            elementData.userValue = event.target.value;
            this.linkService.eventBus?.dispatch("dispatcheventinsandbox", {
              source: this,
              detail: {
                id,
                name: "Keystroke",
                value: event.target.value,
                willCommit: true,
                commitKey: 1,