[autoform] Use fieldclass from kwargs in guess_field for non-final relations This follows up on af969080e7e6 in which a "fieldclass" kwarg has been added in EntityFieldsForm.field_by_name() before calling guess_field(). In this changeset, this value was only used for final relation but the way non-final relation actually also changed since we also use guess_field from these relation (previously, the field class specified through uicfg was instantiated directly in EntityFieldsForm.field_by_name()). So in the non-final case in guess_field() we simply try to retrieve "fieldclass" from kwargs and fall back to RelationField.

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/python-cubicweb-documentation/html/index.html
Files: /usr/share/doc/python-cubicweb-documentation/html/*