text: Title: Empty coarse-grained POS tags for number in the large Romanian model
  Body: Hi, I noticed that the coarse-grained POS tags for numbers in the large Romanian model (`ro_core_news_lg`) is empty rather than `X`. Is this the expected behavior?
  
  ## How to reproduce the behaviour
  ```
  import spacy
  nlp = spacy.load('ro_core_news_lg')
  for token in nlp('2025'):
      print(len(token.pos_), token.pos_)
      print(len(token.tag_), token.tag_)
  ```
  
  ## Your Environment
  * Operating System: Windows 11 x64
  * Python Version Used: 3.11.9
  * spaCy Version Used: 3.8.4
  