The #PAGINATION tag creates (by default) an HTML anchor [1] which enables the browser to directly display the part of the page which is paginated; for example, sometimes we might want to put pagination links below a list of articles, but also, at the same time, we might want to place the anchor above that list.
This is where the #ANCRE_PAGINATION tag comes in, which creates the anchor in question and interrupts the following #PAGINATION tag from inserting its own.
<B_page>
#ANCRE_PAGINATION
<ul>
<BOUCLE_page(ARTICLES) {par date} {pagination}>
<li>#TITRE</li>
</BOUCLE_page>
</ul>
<nav role="navigation" class="pagination">#PAGINATION</nav>
</B_page>