LoRA merge fails for the CPU path with latest A1111

[vanilla-coder]

LoRA merging works fine for the last official A1111 release, but fails on v1.10.0-RC:

Traceback (most recent call last):
File "/Volumes/External One/_A1111/stable-diffusion-webui/venv/lib/python3.10/site-packages/gradio/routes.py", line 488, in run_predict
output = await app.get_blocks().process_api(
File "/Volumes/External One/_A1111/stable-diffusion-webui/venv/lib/python3.10/site-packages/gradio/blocks.py", line 1431, in process_api
result = await self.call_function(
File "/Volumes/External One/_A1111/stable-diffusion-webui/venv/lib/python3.10/site-packages/gradio/blocks.py", line 1103, in call_function
prediction = await anyio.to_thread.run_sync(
File "/Volumes/External One/_A1111/stable-diffusion-webui/venv/lib/python3.10/site-packages/anyio/to_thread.py", line 33, in run_sync
return await get_asynclib().run_sync_in_worker_thread(
File "/Volumes/External One/_A1111/stable-diffusion-webui/venv/lib/python3.10/site-packages/anyio/_backends/_asyncio.py", line 877, in run_sync_in_worker_thread
return await future
File "/Volumes/External One/_A1111/stable-diffusion-webui/venv/lib/python3.10/site-packages/anyio/_backends/_asyncio.py", line 807, in run
result = context.run(func, *args)
File "/Volumes/External One/_A1111/stable-diffusion-webui/venv/lib/python3.10/site-packages/gradio/utils.py", line 707, in wrapper
response = f(*args, **kwargs)
File "/Volumes/External One/_A1111/stable-diffusion-webui/extensions/sd-webui-supermerger/scripts/mergers/pluslora.py", line 772, in pluslora
theta_0 = newpluslora(theta_0,filenames,lweis,names, isxl,isv2, keychanger)
File "/Volumes/External One/_A1111/stable-diffusion-webui/extensions/sd-webui-supermerger/scripts/mergers/pluslora.py", line 868, in newpluslora
theta_0[wkey], theta_0[bkey]= plusweights(theta_0[wkey], module, bias = theta_0[bkey])
File "/Volumes/External One/_A1111/stable-diffusion-webui/extensions/sd-webui-supermerger/scripts/mergers/pluslora.py", line 889, in plusweights
updown = module.calc_updown(weight.to(dtype=torch.float))
File "/Volumes/External One/_A1111/stable-diffusion-webui/extensions-builtin/Lora/network_lora.py", line 76, in calc_updown
updown = lyco_helpers.rebuild_conventional(up, down, output_shape, self.network.dyn_dim)
File "/Volumes/External One/A1111/stable-diffusion-webui/extensions-builtin/Lora/lyco_helpers.py", line 15, in rebuild_conventional
return (up @ down).reshape(shape)
RuntimeError: "addmm_impl_cpu" not implemented for 'Half'