hgt312 opened a new issue #18004: Wrong result when using new numpy ffi in 
deferred compute
URL: https://github.com/apache/incubator-mxnet/issues/18004
 
 
   Find it in CI result of https://github.com/apache/incubator-mxnet/pull/17958.
   
   ## Reproduce:
   
   Sample code, use master branch
   
   ```python
   import mxnet as mx
   import mxnet._deferred_compute as dc
   from mxnet import np, npx
   npx.set_np()
   with dc.context():
       a = np.ones((2, 2))
       b = np.tril(a, 1)
       c = np.tril(a, -1)
   
   sym = dc.get_symbol([b, c], sym_cls=mx.sym.np._Symbol)
   res = sym.bind(mx.context.current_context(), args={}).forward()
   res
   ```
   
   Results:
   
   ```
   [
   [[1. 1.]
    [1. 1.]]
   <NDArray 2x2 @cpu(0)>,
   [[1. 1.]
    [1. 1.]]
   <NDArray 2x2 @cpu(0)>]
   ```
   
   If replace `_api_internal.tril` by `_npi.tril`, the result is right.
   
   @leezu Can you take a look at this?

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