Fix unique ptrs in fpdfppo.cpp

fpdfsdk/fpdfppo.cpp

Index: fpdfsdk/fpdfppo.cpp
diff --git a/fpdfsdk/fpdfppo.cpp b/fpdfsdk/fpdfppo.cpp
index f8b96de1f379ad00c5e277d0e589f2a8ff687c5f..786bc466115ac97a5da50e66e9da860d69a36ff9 100644
--- a/fpdfsdk/fpdfppo.cpp
+++ b/fpdfsdk/fpdfppo.cpp
@@ -285,12 +285,12 @@ uint32_t CPDF_PageOrganizer::GetNewObjId(CPDF_Document* pDoc,
         return 0;
     }
   }
-  dwNewObjNum = pDoc->AddIndirectObject(pClone.get());
+  CPDF_Object* pUnownedClone = pClone.get();
+  dwNewObjNum = pDoc->AddIndirectObject(pClone.release());
   (*pObjNumberMap)[dwObjnum] = dwNewObjNum;
-  if (!UpdateReference(pClone.get(), pDoc, pObjNumberMap))
+  if (!UpdateReference(pUnownedClone, pDoc, pObjNumberMap))
     return 0;
 
-  pClone.release();  // TODO(tsepez): figure out ownership.
   return dwNewObjNum;
 }