TermPortal batch edit "select all" leads to error: param "termid" is not given

1. Filtering a term collection for process status "unprocessed"
2. then selecting all terms
3. batch edit: term attributes: process status

leads to error "param termid is not given"

1. Filtering a term collection for process status "unprocessed"
2. then selecting all terms
3. unselecting 1 term from the list
4. batch edit: term attributes: process status

batch edit works fine.