diff --git a/scripts/mkqtdecl4/mkqtdecl.conf b/scripts/mkqtdecl4/mkqtdecl.conf
index 87f6c703c..9e87acc69 100644
--- a/scripts/mkqtdecl4/mkqtdecl.conf
+++ b/scripts/mkqtdecl4/mkqtdecl.conf
@@ -1418,6 +1418,8 @@ drop_class "QSqlDriverPlugin" # not required ?
 
 drop_method "QFormBuilder", /QFormBuilder::customWidgets\(\s*\)/ # Requires QDesignerCustomWidgetInterface which is not (yet) available
 
+return_new "QAbstractFormBuilder", /::load/   # returns a free object
+
 no_copy_ctor "QAbstractFormBuilder"
 no_copy_ctor "QFormBuilder"
 
diff --git a/scripts/mkqtdecl5/mkqtdecl.conf b/scripts/mkqtdecl5/mkqtdecl.conf
index a704ebc95..13d3ab9fe 100644
--- a/scripts/mkqtdecl5/mkqtdecl.conf
+++ b/scripts/mkqtdecl5/mkqtdecl.conf
@@ -1602,6 +1602,8 @@ drop_class "QSqlDriverPlugin" # not required ?
 
 drop_method "QFormBuilder", /QFormBuilder::customWidgets\(\s*\)/ # Requires QDesignerCustomWidgetInterface which is not (yet) available
 
+return_new "QAbstractFormBuilder", /::load/   # returns a free object
+
 no_copy_ctor "QAbstractFormBuilder"
 no_copy_ctor "QFormBuilder"
 
diff --git a/src/gsiqt4/gsiDeclQAbstractFormBuilder.cc b/src/gsiqt4/gsiDeclQAbstractFormBuilder.cc
index 07910abf9..9f1ece346 100644
--- a/src/gsiqt4/gsiDeclQAbstractFormBuilder.cc
+++ b/src/gsiqt4/gsiDeclQAbstractFormBuilder.cc
@@ -97,7 +97,7 @@ static void _init_f_load_2654 (qt_gsi::GenericMethod *decl)
   decl->add_arg<QIODevice * > (argspec_0);
   static gsi::ArgSpecBase argspec_1 ("parentWidget", true, "0");
   decl->add_arg<QWidget * > (argspec_1);
-  decl->set_return<QWidget * > ();
+  decl->set_return_new<QWidget * > ();
 }
 
 static void _call_f_load_2654 (const qt_gsi::GenericMethod * /*decl*/, void *cls, gsi::SerialArgs &args, gsi::SerialArgs &ret) 
diff --git a/src/gsiqt5/gsiDeclQAbstractFormBuilder.cc b/src/gsiqt5/gsiDeclQAbstractFormBuilder.cc
index eefd1909e..7b0031b8c 100644
--- a/src/gsiqt5/gsiDeclQAbstractFormBuilder.cc
+++ b/src/gsiqt5/gsiDeclQAbstractFormBuilder.cc
@@ -97,7 +97,7 @@ static void _init_f_load_2654 (qt_gsi::GenericMethod *decl)
   decl->add_arg<QIODevice * > (argspec_0);
   static gsi::ArgSpecBase argspec_1 ("parentWidget", true, "0");
   decl->add_arg<QWidget * > (argspec_1);
-  decl->set_return<QWidget * > ();
+  decl->set_return_new<QWidget * > ();
 }
 
 static void _call_f_load_2654 (const qt_gsi::GenericMethod * /*decl*/, void *cls, gsi::SerialArgs &args, gsi::SerialArgs &ret) 
diff --git a/src/pya/pya/pyaObject.cc b/src/pya/pya/pyaObject.cc
index c9204565a..9e3af172e 100644
--- a/src/pya/pya/pyaObject.cc
+++ b/src/pya/pya/pyaObject.cc
@@ -221,19 +221,28 @@ void SignalHandler::call (const gsi::MethodBase *meth, gsi::SerialArgs &args, gs
       PyTuple_SetItem (argv.get (), int (a - meth->begin_arguments ()), pop_arg (*a, args, NULL, heap).release ());
     }
 
-    PythonRef result;
+    //  NOTE: in case one event handler deletes the object, it's safer to first collect the handlers and
+    //  then call them.
+    std::vector<PythonRef> callables;
+    callables.reserve (m_cbfuncs.size ());
     for (std::vector<CallbackFunction>::const_iterator c = m_cbfuncs.begin (); c != m_cbfuncs.end (); ++c) {
+      callables.push_back (c->callable ());
+    }
+
+    PythonRef result;
+
+    for (std::vector<PythonRef>::const_iterator c = callables.begin (); c != callables.end (); ++c) {
 
       //  determine the number of arguments required
       int arg_count = args_avail;
       if (args_avail > 0) {
 
-        PythonRef fc (PyObject_GetAttrString (c->callable ().get (), "__code__"));
+        PythonRef fc (PyObject_GetAttrString (c->get (), "__code__"));
         if (fc) {
           PythonRef ac (PyObject_GetAttrString (fc.get (), "co_argcount"));
           if (ac) {
             arg_count = python2c<int> (ac.get ());
-            if (PyObject_HasAttrString (c->callable ().get (), "__self__")) {
+            if (PyObject_HasAttrString (c->get (), "__self__")) {
               arg_count -= 1;
             }
           }
@@ -243,12 +252,12 @@ void SignalHandler::call (const gsi::MethodBase *meth, gsi::SerialArgs &args, gs
 
       //  use less arguments if applicable
       if (arg_count == 0) {
-        result = PythonRef (PyObject_CallObject (c->callable ().get (), NULL));
+        result = PythonRef (PyObject_CallObject (c->get (), NULL));
       } else if (arg_count < args_avail) {
         PythonRef argv_less (PyTuple_GetSlice (argv.get (), 0, arg_count));
-        result = PythonRef (PyObject_CallObject (c->callable ().get (), argv_less.get ()));
+        result = PythonRef (PyObject_CallObject (c->get (), argv_less.get ()));
       } else {
-        result = PythonRef (PyObject_CallObject (c->callable ().get (), argv.get ()));
+        result = PythonRef (PyObject_CallObject (c->get (), argv.get ()));
       }
 
       if (! result) {