[dev] empty answer without signing - bug or feature?

hi! is it a "feature" that only the new email ticket can be signed with pgp but the empty answer can not be signed? -- Liebe Gruesse, with best regards Stephan Lauffer [ University of Education Freiburg - Germany ] [ http://www.ph-freiburg.de/zik/ ] [ Fon/ Fax: +49 761 682 -459/ -486 ]