Have electronic signing configured in the LOK client, try to insert a signature line, you'll get a certificate picker, while we don't have a cert during esign. What's in fact needed for creating the signature line is just a name (previously extracted from the certificate), we can survive the lack of actual certificate. Fix the problem by adding a new External parameter to .uno:InsertSignatureLine to hint that the certificate chooser should not be opened, instead the editor name (used for comments already) should be used. Add a new CertificateOrName in svl/ and use that in all places where previously we wanted a certificate but in fact it's enough to have a certificate or a name to create the signature line. The name on the signature line is just visual feedback, the actual name on the crypto signature is still not based on untrusted used input. Change-Id: Ib7008112a8e28a9e7d9649745e6021dd6b6b9c39 Reviewed-on: https://gerrit.libreoffice.org/c/core/+/180193 Tested-by: Jenkins Reviewed-by: Miklos Vajna <vmiklos@collabora.com>