WYSIWYG section editing add {{putFootnotes/}} in section if a document with footnotes is included

Create a document like this:

= Demo XWIKI-5713 =

see: [[SubDoc>>XWIKI-5713-sub]]

== sec1 ==

{{include document="Sandbox.XWIKI-5713-sub"/}}

== sec2 ==

{{putFootnotes/}}

 lorem ipsum

And a subdocument like this:

A simple test{{footnote}}My footnote :-){{/footnote}}

Click on the section edit symbol of sec1 with the WYSIWYG editor and save the section. At the end of this section (sec1), in wiki syntax, is now a

{{putFootnotes/}}

statement.