When I import some products in "create mode" with attributes empty values the original value is preserved.
If I do the same import in "update mode" the orginal value is resetted with empty value.
I think the problem is on magmi_defaultattributehandler.php, the MAGMI_DELETE directive seems to be applied only in "update mode".
Only varchar attributes ara affected, text attributes (for example) are working properly
Does someone has the same problem?
I have the same problem. I have reported this as a bug here:
Latest git is able to reset text values :)