INVALID_CHARACTER_ERR message on blog with pagination

Hello,

"Failed to execute the [html] macro. Cause: [INVALID_CHARACTER_ERR: An invalid or illegal XML character is specified.]. Click on this message for details." message are displayed when using pagination on blog.

I tested on xwiki 10.11.3 jetty package.

Step to reproduce:

• install blog extension
• create 2 new blog post
• edit Blog.WebHome with these settings:
  • Index display: pagined
  • items per page: 2
  • Posts Layout: calendar
• view /bin/view/Blog/: "Failed to execute the [html] macro...." are displayed

I checked Blog.BlogPostList but didn't manage to find the origin of this issue

Thxs.

Pascal B