Merge branch 'fix_multipicklist_issue_1493' into 'master'

#1493 fixes bug that deletes multipicklist fields when included in mass edit.

#1493 fixes bug that deletes multipicklist fields when included in mass edit. Fixes bugs in automatic inclussion of fields for mass edit (checking the checkbox next to the field), as reference fields and multipicklists were not working.

See merge request !736