[dataimport] add a filter function to not fail if some extentity has several values for an attribute of final relation
the function will simply record a warning in the import log and keep a value
randomly.
Notice the function has to be explicitly inserted in the transformation stream.
Document: cubicweb-doc
Title: CubicWeb documentation
Author: Logilab
Abstract: Some base documentation for CubicWeb users and developpers
Section: Apps/Programming
Format: HTML
Index: /usr/share/doc/cubicweb-documentation/html/index.html
Files: /usr/share/doc/cubicweb-documentation/html/*