[BUG] Packed constants in TF not handled properly

[weimingzha0]

Describe the bug
for values like [a, a,...], TF saved it as a single {a}.
TF parser doesn't handle it properly.

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Expected behavior
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Additional context
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[youbeny]

If shape is set, the value is reshaped to match. Scalars are expanded to fill the shape:

print(tf.Session().run(tf.constant(0, shape=(2,3))))
>>>[[0 0 0]
    [0 0 0]]