Can't delete nested object from store #23

// Store
const state = {
 collections: {
 items: {
 a: { ... },
 b: { ... },
 c: { ... },
 }
 // ...
 }
 // ...
}
// Action
removeItem({ collections }, id) {
 let items = collections.items;
 // Remove item
 if (items[id]) {
 const { [id]: removed, ...rest } = items;
 items = rest;
 }
 return { collections: { ...collections, items } };
},