When importing into a channel entry with Grid fields there is no option to ‘Do nothing’
At present the import either:
1. Deletes all grid rows
2. Appends rows onto existing
3. Attempts to update a row if a grid field matches
If you just want to update an existing channel entry which has a grid field but no action is needed on that grid field the import always adds a row to the grid with no data in it.
This causes problems because templates often check for grid rows and output content if a row exists - DG creates an empty row which it shouldn’t
An option is needed for ‘Do nothing to this grid field’
This is the case on other custom fields where if no value is submitted then no action is taken.