Sorting by date doesn't work all the time

[ninest]

Sorting related articles by date is done client-side using a computed property:

// _slug.vue
computed: {
  sortedSimilar() {
    return this.similarArticles.sort((first, second) => {
      return new Date(first.created) < new Date(second.created)
    })
  }
},

However, this only works when the the page is accessed directly. If the page is navigated to, this does not seem to work