message: fix: handle single-root slots in observer
diff: @@ -81,9 +81,11 @@ export const ValidationObserver = {
  slots = () => normalizeSlots(this.$slots, this.$vnode.context);
  }
  + const nodes = slots(this.ctx);
  +
  return h(this.tag, {
  attrs: this.$attrs,
  on: this.$listeners
  - }, slots(this.ctx));
  + }, Array.isArray(nodes) ? nodes : [nodes]);
  }
  };
  