How to use [cut] in blogs?

Правка en1, от k-dx, 2022-06-28 14:12:38

Above the blogpost editor I see such information:

Use on an empty line to denote the end of the short version of this article

[cut]

I have 2 questions:

  1. What is it used for? I suppose this 'short version' of the article is the one displayed when the article is searched or similar?
  2. When I try to use it, either text before it becomes very big or nothing happens (see above). Is this the intended behaviour?

Thanks!

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en1 Английский k-dx 2022-06-28 14:12:38 467 Initial revision (published)