CSS pseudo-class function selectors not highlighted inside media query

[jsit]

@media (min-width: $bp-medium-min) {
  :is(.class--modifier) {
    /* not correctly highlighted */
  }

  :not(test) {
    /* not correctly highlighted */
  }

  :last-child {
    /* correctly highlighted */
  }
}

:is(.class--modifier) {
  /* correctly highlighted */
}

:not(test) {
  /* correctly highlighted */
}

:last-child {
  /* correctly highlighted */
}