in src/setter/mixed-setter/index.tsx [279:288]
private checkIsBlockField() {
if (this.shell) {
const setter = this.shell.firstElementChild;
if (setter && setter.classList.contains('lc-block-setter')) {
this.shell.classList.add('lc-block-setter');
} else {
this.shell.classList.remove('lc-block-setter');
}
}
}