tag 2f4cc1fea5aa20b68f73babcc6a24356c18b029b 2.4.12
Author:	Benjamin Staneck <staneck@gmail.com>
Date:	Fri Jul 14 02:57:58 2017 +0200

commit 07a71fc02e30ca2c9d927caac35f5d1d91977d13
Author: Benjamin Staneck <staneck@gmail.com>
Date:   Fri Jul 14 02:46:39 2017 +0200

    add safeguards for group anchoring

