Convrot quants dillute loras, likeness is not preserved/ SOLVED

### Custom Node Testing

- [x] I have tried disabling custom nodes and the issue persists (see [how to disable custom nodes](https://docs.comfy.org/troubleshooting/custom-node-issues#step-1%3A-test-with-all-custom-nodes-disabled) if you need help)

### Expected Behavior

it should preserve lora strength likeness like non convrot weights .

### Actual Behavior

i did non convrot vs convrot lora test - the non convrot one preserved likeness from 0.6 -1 strength no problem but with convrot even 1.0 likeness was at about 75 % !!! This is a big problem.
Test with zimage and convrots from hface.

### Steps to Reproduce

download non convrot and convrot version of z-image and test lora with likeness and frozen seed.

### Debug Logs

```powershell
...
```

### Other

_No response_

Reproduce the comparison described with non-convrot and convrot Z-Image weights, a LoRA, likeness strengths from 0.6 to 1.0, and a frozen seed. Start by tracing where ComfyUI loads or applies these weights; done means determining why convrot quantization reduces likeness preservation and verifying equivalent behavior against the non-convrot test.

Written by the indexing model from the issue text.