fix structure_entry property

Author: esoteric-ephemera

emmet-core/emmet/core/tasks.py

@@ -804,7 +804,9 @@ def structure_entry(self) -> ComputedStructureEntry:
         ComputedStructureEntry
             The TaskDoc.entry with corresponding TaskDoc.structure added.
         """
-        ce = self.entry.get_computed_entry()
+        ce = self.entry
+        if not getattr(self, "_use_pymatgen_rep", False):
+            ce = ce.get_computed_entry()
         return ComputedStructureEntry(
             structure=self.structure,
             energy=ce.energy,