title: PyCharm 2021.1 Community Edition auto import Django CASCADE
body: <p>I upgraded PyCharm Community Edition to 2021.1 a few days ago.</p>
  <p>But I found it can't resolve some Django auto import correctly now.</p>
  <p>For example, I set CASCADE as on_delete for one ForeignKey, it should suggest me to import django.db.models.CASCADE, but it suggest tkinter.CASCADE instead.</p>
  <p><a href="https://i.stack.imgur.com/ueY2x.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/ueY2x.png" alt="enter image description here" /></a></p>