Fix: Upstream Bug Fixes for Lycoris

[ash-bluepollution95]

LyCORIS fixes → contribute to https://github.com/67372a/LyCORIS

7. lycoris/modules/full.py — None.dtype AttributeError

File: lycoris/modules/full.py line 235

diff_b is initialized to None on line 230. The dtype guard at line 235
compared org_bias.dtype != diff_b.dtype before diff_b was assigned a tensor
value — guaranteed AttributeError on every call to get_diff_weight when
self.bias is not None.

Fix: Compare against self.bias.dtype (the correct reference) instead of
the not-yet-assigned diff_b.dtype.

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8. test/regex_args.py — wrong preset key names in test fixture

File: test/regex_args.py line 40–41

reset_globals() passed "reg_dims" and "reg_lrs" to apply_preset(), but
the validated key names are "network_reg_dims" and "network_reg_lrs". Every
test that calls this fixture in cleanup raises KeyError, breaking the entire
test file.

Fix: "reg_dims" → "network_reg_dims", "reg_lrs" → `"network_reg_lrs

Note: There may be more bugs that you'd noted in your readme, and I haven't QUITE had a chance to test these fixes yet, feel free to "Yeet" or deny, i just figured since CR picked them up when I was updating vendored code i'd contribute back. I have more fixes for SD-scripts coming in a minute, just that i had to open up the markdown in notepad++ to find the details