Source: https://salsa.debian.org/debian/mangler/-/blob/master/debian/patches/hostname-fix.patch?ref_type=heads

Description: Fix mangled hostname/port strings in connection dialog
Forwarded: no
Author: Scott <spruett345@gmail.com>
Bug-Ubuntu: https://bugs.launchpad.net/bugs/1507232
Last-Update: 2016-04-27

--- a/src/mangler.cpp
+++ b/src/mangler.cpp
@@ -567,13 +567,13 @@ void Mangler::quickConnectButton_clicked_cb(void) {/*{{{*/
     dialog->set_icon(icons["tray_icon"]);
 
     builder->get_widget("qcServerName", entry);
-    entry->set_text(config["qc_lastserver.hostname"].toCString());
+    entry->set_text(config["qc_lastserver.hostname"].toUString());
     builder->get_widget("qcPort", entry);
-    entry->set_text(config["qc_lastserver.port"].toCString());
+    entry->set_text(config["qc_lastserver.port"].toUString());
     builder->get_widget("qcUsername", entry);
-    entry->set_text(config["qc_lastserver.username"].toCString());
+    entry->set_text(config["qc_lastserver.username"].toUString());
     builder->get_widget("qcPassword", entry);
-    entry->set_text(config["qc_lastserver.password"].toCString());
+    entry->set_text(config["qc_lastserver.password"].toUString());
 
     builder->get_widget("qcConnectButton", button);
     button->set_sensitive(!v3_is_loggedin());
@@ -605,11 +605,11 @@ void Mangler::connectButton_clicked_cb(void) {/*{{{*/
             Gtk::TreeModel::Row row = *iter;
             connectedServerName = Glib::ustring( row[serverList->serverListColumns.name] );
             iniSection &server(config.servers[connectedServerName]);
-            Glib::ustring hostname = server["hostname"].toCString();
-            Glib::ustring port     = server["port"].toCString();
-            Glib::ustring username = server["username"].toCString();
-            Glib::ustring password = server["password"].toCString();
-            Glib::ustring phonetic = server["phonetic"].toCString();
+            Glib::ustring hostname = server["hostname"].toUString();
+            Glib::ustring port     = server["port"].toUString();
+            Glib::ustring username = server["username"].toUString();
+            Glib::ustring password = server["password"].toUString();
+            Glib::ustring phonetic = server["phonetic"].toUString();
             if (!server.size() || hostname.empty() || port.empty() || username.empty()) {
                 builder->get_widget("statusbar", statusbar);
                 statusbar->pop();