chore: fix the transaction_id to return original one

Signed-off-by: Manish Dait <daitmanish88@gmail.com>

Author: manishdait

src/hiero_sdk_python/consensus/topic_message_submit_transaction.py

@@ -419,10 +419,12 @@ def body_size_all_chunks(self) -> List[int]:
         sizes = []
 
         original_index = self._current_index
+        original_transaction_id = self.transaction_id
         for transaction_id in self._transaction_ids:
             self.transaction_id = transaction_id
             sizes.append(self.body_size)
 
         self._current_index = original_index
+        self.transaction_id = original_transaction_id
         return sizes
 

src/hiero_sdk_python/file/file_append_transaction.py

@@ -481,10 +481,12 @@ def body_size_all_chunks(self) -> List[int]:
         sizes = []
 
         original_index = self._current_chunk_index
+        original_transaction_id = self.transaction_id
         for transaction_id in self._transaction_ids:
             self.transaction_id = transaction_id
             sizes.append(self.body_size)
 
         self._current_chunk_index = original_index
+        self.transaction_id = original_transaction_id
         return sizes