[Plugin: WP Super Cache] extra pages cached, corresponding to rel='next'

I am seeing double the expected number of pages cached when a non-logged-in user visits the site.
For a given page “A”, after a couple of seconds, the plugin is also caching the page showing up in the header as:

link rel=’next’ ……………

which is created by default by themes such as 2013 or Atahualpa.

https://www.ads-software.com/extend/plugins/wp-super-cache/