BUG: Incorrect hasPreviousFlag of the pageInfo object

[hero101]

Describe the bug The hasPreviousPage flag of the pageInfo object is returning mostly always false, where it must say if there is a data prior to the cursor used.

To Reproduce Steps to reproduce the behavior:

1. Execute the following request and get the value of endCursor

{
  activityFeed(first:1) {
    pageInfo {
      hasNextPage
      hasPreviousPage
      endCursor
    }
    activityFeed {
      id
    }
  }
}

2. Execute the following request and use the value of endCursor in the after argument.

{
  activityFeed(first:1, after:"END_CURSOR_VALUE_HERE") {
    pageInfo {
      hasNextPage
      hasPreviousPage
      endCursor
    }
    activityFeed {
      id
    }
  }
}

3. hasPreviousPage must be true but is false.

Expected behavior The value of hasPreviousPage must be true for results where you are requesting a page of the list of results. This is valid in the cases where in a list out of 4 items, you are requesting any number of items after the first.