Make PaperCut and VoxelArt models load again

[lstein]

This corrects a regression in loading of these models due to a change of the embedding_manager parameter num_vectors_per_token

Reverting to the original version (1) does not seem to affect concept embeddings.

Fixes #1718

[lstein]

@damian0815 I do not recall why we changed num_vectors_per_token from 1 to 8. If there is a good reason for it to be 8, I will make a new inference configuration file and use it when the PaperCut and VoxelArt models are configured. Please let me know.

[damian0815]

also fixes #1657

after setting this back to 1, please test if https://huggingface.co/datasets/Nerfgun3/bad_prompt/blob/main/bad_prompt_version2.pt loads (it has a vector length of 8)

i do not know how to verify if it's actually working but @blessedcoolant has a prompt created in a similar way.

[lstein]

also fixes #1657

after setting this back to 1, please test if https://huggingface.co/datasets/Nerfgun3/bad_prompt/blob/main/bad_prompt_version2.pt loads (it has a vector length of 8)

i do not know how to verify if it's actually working but @blessedcoolant has a prompt created in a similar way.

Both bad_prompt.pt and bad_prompt_version2.pt load as embeddings without any obvious problems. I don't understand what this negative prompt is supposed to do, but using it created images that looked OK.

[tildebyte]

I don't understand what this negative prompt is supposed to do

IIUC, it's a "stock" negative prompt which one would use for all generations by including 'bad_prompt' or some such in every prompt (as opposed to copy-pasting a long list every time). Impossible to tell what it actually does without knowing what terms are included in the negation list.

[hipsterusername]

a bunch of the ones we make fun of for being pointless. nevertheless, commonly used.

[damian0815]

right, it's just that not knowing what it does makes it hard to know if it's being loaded correctly (all 8 vectors) or if it's being truncated (just the 1st vector is loaded/used and it "seems" ok but actually isnt).

[damian0815]

let's merge it

[thinkyhead]

I've just updated main using Git and running the latest, and I see Papercut and voxel_art are not currently loading. Do we need to run any update scripts to get these to work?