1.6.2:

2007-10-17  Murray Cumming  <murrayc@murrayc.com>

	* glom/libglom/data_structure/field.cc:
	* glom/libglom/data_structure/field.h: Copy constructor: 
	copy m_field_info instead of sharing one reference-counted instance.
	get_field_info(): Add a const overload and make the existing one non-const. 
	This const correctness should prevent us from using the same instance when 
	we actually want to explicitly take a copy.
	This errors were probably caused during the port to libgda 3.0, when 
	Gda::Column became a reference-counted object.
	* glom/mode_design/fields/box_db_table_definition.cc:
	get_field_definition(): copy the field_info instead of just reusing the 
	existing one, to avoid changing the original field_info accidentally.

	These changes make field type changes actually work again in 1.6.