Merge branch 'processing_modeler_default_value'

Author: rldhont

python/plugins/processing/modeler/ModelerAlgorithm.py

@@ -389,7 +389,7 @@ def prepareAlgorithm(self, alg):
                         iface.messageBar().pushMessage(self.tr("Warning"),
                                                        self.tr("Parameter %s in algorithm %s in the model is run with default value! Edit the model to make sure that this is correct.") % (param.name, alg.name),
                                                        QgsMessageBar.WARNING, 4)
-                    value = None
+                    value = param.default
                 if value is None and isinstance(param, ParameterExtent):
                     value = self.getMinCoveringExtent()
                 # We allow unexistent filepaths, since that allows

python/plugins/processing/modeler/ModelerParametersDialog.py

@@ -454,7 +454,7 @@ def setPreviousValues(self):
                 if param.name in alg.params:
                     value = alg.params[param.name]
                 else:
-                    value = None
+                    value = param.default
                 if isinstance(param, (
                         ParameterRaster,
                         ParameterVector,