Before this commit, you had to click on "Add a line", then select a value in the m2o which appeared, then click on "Add". Now, the m2o is always there in edit mode and you just have to click "Add" once.
Before this commit, you had to click on "Add a line", then select a value in the m2o which appeared, then click on "Add". Now, the m2o is always there in edit mode and you just have to click "Add" once.