Unable to Load Stable Diffusion 2.0 Custom Model ckpt (768-v-ema.ckpt)

Error output thrown to UI:
```
Error Traceback (most recent call last):
File "convert_model.py", line 42, in
AssertionError: ('shape mismatch at', 'model.diffusion_model.input_blocks.1.1.proj_in.weight', [320, 320], (320, 320, 1, 1))
[27993] Failed to execute script 'convert_model' due to unhandled exception!
```
Trying to load the new Stable Diffusion model as a Custom Model.

More info:
* Apple M1 Pro
* 16 GB
* MacOS 13.0.1 (22A400)
* DiffusionBee Version 1.5.1 (0016)

Has anyone seen this, and is there a workaround for this? Or is this a known problem that requires code changes to add full support for?