--- msg.cpp	2017-12-13 15:25:26.000000000 +0200
+++ msg.cpp.edit	2020-10-15 07:39:08.520138519 +0200
@@ -557,7 +557,8 @@
         return -1;
     }
 
-    strncpy (u.base.group, group_, length_);
+    //strncpy (u.base.group, group_, length_);
+    memcpy (u.base.group, group_, length_);
     u.base.group[length_] = '\0';
 
     return 0;