Hi, I use Fabrik svn_5848. I've found a medium level bug with database join element using checkbox type. The issue occurs if you try to modify a row: it doesn't save changes. Example: A row contains checkbox database join element with "a" and "c" checked values from "a", "b", "c", "d" list values. I want to modify it with no checked values. After save "a" and "c" still remains checked, so it doesn't save my choice.