[processing] correctly handle multiple vector layers

Author: volaya

python/plugins/processing/gui/AlgorithmDialog.py

@@ -123,10 +123,12 @@ def setParamValue(self, param, widget, alg=None):
             if param.datatype == ParameterMultipleInput.TYPE_FILE:
                 return param.setValue(widget.selectedoptions)
             else:
-                if param.datatype == ParameterMultipleInput.TYPE_VECTOR_ANY:
+                if param.datatype == ParameterMultipleInput.TYPE_RASTER:
+                    options = dataobjects.getRasterLayers(sorting=False)
+                elif param.datatype == ParameterMultipleInput.TYPE_VECTOR_ANY:
                     options = dataobjects.getVectorLayers(sorting=False)
                 else:
-                    options = dataobjects.getRasterLayers(sorting=False)
+                    options = dataobjects.getVectorLayers([param.datatype], sorting=False)
                 return param.setValue([options[i] for i in widget.selectedoptions])
         elif isinstance(param, (ParameterNumber, ParameterFile, ParameterCrs,
                         ParameterExtent)):