Fixed #6788 by clearing only the first label in the cloned row
(cherry picked from commit d38d215d1d9429d3a1a15708f92b14cf3a15b247)
Fixed #6788 by clearing only the first label in the cloned row
(cherry picked from commit d38d215d1d9429d3a1a15708f92b14cf3a15b247)