[Bug]: New PyTorch version (2.6.0) breaks existing code

[pawelad]

Describe the bug

After upgrading PyTorch to v2.6.0, our code started breaking with:

ValueError: Could not find any model with name 'ner-multi'

After downgrading to v2.5.1, everything works as expected.

To Reproduce

from flair.data import Sentence
from flair.nn import Classifier

value = "Acme Inc"

ner_tagger = Classifier.load("ner-multi")
sentence = Sentence(value)
ner_tagger.predict(sentence)

Expected behavior

Model is loaded without an error.

Logs and Stack traces

2025-01-31 12:21:28,416 --------------------------------------------------------------------------------
2025-01-31 12:21:28,417 ERROR: The key 'ner-multi' was neither found on the ModelHub nor is this a valid path to a file on your system!
2025-01-31 12:21:28,417  -> Please check https://huggingface.co/models?filter=flair for all available models.
2025-01-31 12:21:28,417  -> Alternatively, point to a model file on your local drive.
2025-01-31 12:21:28,417 --------------------------------------------------------------------------------

Screenshots

No response

Additional Context

No response

Environment

#### Versions:
##### Flair
0.15.0
##### Pytorch
2.6.0
##### Transformers
4.48.2
#### GPU
False