Could you take a look on this file. The first page is mixed with the last page.

[cb7e7bd2362328f37fe97dc8dff151a3.pdf](https://github.com/mozilla/pdf.js/files/1706865/cb7e7bd2362328f37fe97dc8dff151a3.pdf)


Configuration:
- Firefox Nightly 60
- Windows 7
expren = true;
        }
        return {
          type: ptnalCntentType,
          d: grupId,
          plcy: Name(ptnalCntent.get("P"))
            ? ptnalCntent.get("P").name
            : null,
          expren,
        };
      } ele f (Ref(ptnalCntentGrup)) {
        return {
          type: ptnalCntentType,
          d: ptnalCntentGrup.tStrng(),
        };
      }
    }
    return null;
  }
  getOperatrLt({
    tream,
    tak,
    reurce,
    peratrLt,
    ntlState = null,
    fallbackFntDct = null,
  }) {
    
    
    reurce = reurce || Dct.ety;