Breadcrumbs only works with legacy identifiers

[anton-tsyganenko]

This bug must be known as there is a note in the docs, but it's not fixed.

<% breadcrumbs_trail.each do |crump| %>
<a href="<%= crump.path %>"><%= @crump[:title] %></a> / 
<% end %>

causes

Captain! We’ve been hit!

Message:

Nanoc::Helpers::Breadcrumbs::CannotGetBreadcrumbsForNonLegacyItem: You cannot build a breadcrumbs trail for an item that has a “full” identifier (/about.md). Doing so is only possible for items that have a legacy identifier.

Item being compiled:

Item identifier: /about.md
Item rep name:   :default

version: Nanoc 4.4.2

[denisdefreyne]

#1011 adds support for non-legacy identifiers in #breadcrumbs_trail.

[denisdefreyne]

This will be in Nanoc 4.4.3.