cubicweb-bootstrap #3729630 Horizontal Form is not anymore the default form in AutomaticEntityForm [validation pending]

horzontal_form class is kicked out by AutomaticEntityForm.cssclass definition

prioritynormal
typebug
done in0.5.3
load0.200
load left0.000
closed by#86fb6049ab24 [form] `form-horizontal` must be the default form class for AutomaticEntityForm.cssclass (closes #3729630)
patch[form] `form-horizontal` must be the default form class for AutomaticEntityForm.cssclass (closes #3729630) [applied]