`Segmentation fault` in `tf.raw_ops.CollectiveGather` when `input` is empty.
@xl1043237213,
Thank you for reporting the issue. I was able to reproduce the issue on tensorflow v2.15, v2.16 and tf-nightly. Kindly find the gist of it [here](https://colab.sandbox.google.com/gist/tilakrayal/ffd1aea1441acc9ce8239cba0b6e0ea5/untitled1867.ipynb).

### Issue type

Bug

### Have you reproduced the bug with TensorFlow Nightly?

Yes

### Source

binary

### TensorFlow version

tf 2.15

### Custom code

Yes

### OS platform and distribution

Linux Ubuntu 20.04

### Mobile device

_No response_

### Python version

3.10

### Bazel version

_No response_

### GCC/compiler version

_No response_

### CUDA/cuDNN version

_No response_

### GPU model and memory

_No response_

### Current behavior?

`Segmentation fault` in `tf.raw_ops.CollectiveGather` when `input` is empty.

### Standalone code to reproduce the issue

```shell
https://colab.research.google.com/drive/1lx42HhXrkx5BPwSxLg-bGuJMMCTEIQyt?usp=sharing
```


### Relevant log output

```shell
segmentation fault (core dumped)
```
