I have this wizard for printing payslips which has 2 one2many fields: payslips and employees.

When i click Print -> pdf is downloaded but one2many field opens by itself. So a form for adding payslips or employees opens up again. 

This doesn't happen always, it seems to be in about 50 percent of cases, with no rule to why it is happening. Also sometimes it opens payslips and sometimes employees, again with no rule which will open.

Is this a know bug or does anyone know a fix for this?