text: Title: Can not open and score a Word2vec model generated in v3.8.0 in v4.2.0
  Body: #### Problem description
  Hello,
  
  I'm trying to score a sentence in a script using gensim v4.2.0, with a model trained in v3.8.0. However, I meet the error `AttributeError: 'Word2Vec' object has no attribute 'syn1'`
  
  #### Steps/code/corpus to reproduce
  
  Link to the model file: https://filetransfer.io/data-package/DIMOegMO#link
  
  ```python
  from gensim.models import Word2vec
  from gensim.utils import SaveLoad
  
  sv = SaveLoad()
  model = sv.load('test.mdl')
  model.score(['test'], total_sentences=1)
  ```
  
  #### Versions
  
  
  ```python
  >>> import platform; print(platform.platform())
  Linux-5.4.0-135-generic-x86_64-with-Ubuntu-18.04-bionic
  >>> import sys; print("Python", sys.version)
  Python 3.6.9 (default, Nov 25 2022, 14:10:45) 
  [GCC 8.4.0]
  >>> import struct; print("Bits", 8 * struct.calcsize("P"))
  Bits 64
  >>> import numpy; print("NumPy", numpy.__version__)
  NumPy 1.18.3
  >>> import scipy; print("SciPy", scipy.__version__)
  SciPy 1.4.1
  >>> import gensim; print("gensim", gensim.__version__)
  gensim 4.2.0
  >>> from gensim.models import word2vec;print("FAST_VERSION", word2vec.FAST_VERSION)
  FAST_VERSION 1
  ```
  
  Thanks a lot !
  