New images pasted into an article are subject to deletion after being pasted (post-"uploading" status), if any deleting takes place anywhere else in the article, regardless of where the cursor is placed.
Steps to reproduce:
  1. Open an article to edit
  2. Paste a new (external) image into the article, and wait for upload status to complete.
  3. Click your cursor on any existing text or extra line breaks above or below the newly pasted image.
  4. Click delete.
  5. Note that the newly pasted image has been deleted.