Unsetting the textCollection attribute values by bulk actions or import data (with empty columns) is not possible.
The existing data is kept as it is.
The behaviour should be the same on all attributes - empty data on bulk actions or import result in emptied attribute values.
Unsetting the textCollection attribute values by bulk actions or import data (with empty columns) is not possible. The existing data is kept as it is. The behaviour should be the same on all attributes - empty data on bulk actions or import result in emptied attribute values.