Search of student names in absence management dialog doesn't work

added part::frontend source::customer::kath type::bug labels

assigned to @ZugBahnHof

created branch 292-search-of-student-names-in-absence-management-dialog-doesn-t-work to address this issue

assigned to @hansegucker and unassigned @ZugBahnHof

mentioned in merge request !381 (merged)

closed with commit f4335195

mentioned in commit f4335195