Strange behavior about pattern matching on manual pages

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Hi,

I encounter a problem when viewing manuals via man(1) command.

The case is simple, when I try to search something, I press ‘/’, and then input the pattern, If it got something in the page, it will direct me into the specified place, and then, I continue with ’n’, and it goes well.
But the problem is, after a sequence of ’n’, the screen go to the end of the manual pages, and keeping press ’n’, I got annoying “...skipping...”, the page is full of skipping and parts of the end of the manual page.

Is this a bug of man(1) or just a feature?

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