demos: copy array for async (#3591)

Ticket 82580

Author: Wovchena

demos/common/python/openvino/model_zoo/model_api/adapters/openvino_adapter.py

@@ -121,16 +121,18 @@ def reshape_model(self, new_shape):
         self.model.reshape(new_shape)
 
     def get_raw_result(self, request):
-        raw_result = {key: request.get_tensor(key).data[:] for key in self.get_output_layers().keys()}
-        return raw_result
+        return {key: request.get_tensor(key).data for key in self.get_output_layers()}
+
+    def copy_raw_result(self, request):
+        return {key: request.get_tensor(key).data.copy() for key in self.get_output_layers()}
 
     def infer_sync(self, dict_data):
         self.infer_request = self.async_queue[self.async_queue.get_idle_request_id()]
         self.infer_request.infer(dict_data)
         return self.get_raw_result(self.infer_request)
 
     def infer_async(self, dict_data, callback_data) -> None:
-        self.async_queue.start_async(dict_data, (self.get_raw_result, callback_data))
+        self.async_queue.start_async(dict_data, (self.copy_raw_result, callback_data))
 
     def set_callback(self, callback_fn):
         self.async_queue.set_callback(callback_fn)