When MDBWysiwyg is used inside a form, clicking on any of the drop down buttons causes the form to submit.

This issue existed previously with other buttons as well and they got fixed by adding a type="button" to them but the same thing is not carried out to the drop down buttons.

The default value for type property of buttons is submit so if you don't explicitly define the button type, any button is treated as a submit button inside a form.