pentaho/pentaho-kettle — pull request #355 by dbahdano (2014-03-03 18:07:08+00:00)
Title: PDI-11319 IfNull step "Set empty string" forward incompatibility and

Maintain forward compatibility - if I open a transformation created in Kettle 4 I don't want to set flags "setEmptyStringAll" and "set_type_empty_string" to true.

Unit test is provided.