[sources/native] ask permission to continue restoring even if metadata do not match (closes #7771864)
Moreover we try to clarify the message (Expected/Found was never too clear for users).
usr/lib/PY_VERSION/*-packages/cubicweb/web
usr/lib/PY_VERSION/*-packages/cubicweb/wsgi
usr/share/cubicweb/cubes/shared/data
usr/share/cubicweb/cubes/shared/wdoc