[entity] Stop linking to external site for external entities This behaviour was ok when we had "true" multi-sources but its rather painful with datafeed sources. Also, it makes absolute_url() costlier than what it should. Besides, it relies on cw_metainformation()['source'] that is pending for removal. Instead, add a link to the original object in the metadata view (the one that displays eid and source at the bottom right corner of the primary view). Related to #15538288.

.. _bwcompat_module:

:mod:`cubicweb.pyramid.bwcompat`
--------------------------------

.. automodule:: cubicweb.pyramid.bwcompat

    .. autofunction:: includeme

    .. autoclass:: PyramidSessionHandler
        :members:

    .. autoclass:: CubicWebPyramidHandler
        :members:

        .. automethod:: __call__

    .. autoclass:: TweenHandler
        :members: