Update FormSerialize's use of InkArray.groupBy()
Update FormSerialize's use of InkArray.groupBy()

rcarmo/Ink,sapo/Ink,birthdayalex/Ink,pkdevbox/Ink,birthdayalex/Ink,sapo/Ink,pkdevbox/Ink,birthdayalex/Ink,pedrocorreia/Ink,pkdevbox/Ink,rcarmo/Ink,pedrocorreia/Ink,rcarmo/Ink,pedrocorreia/Ink,sapo/Ink