[processing] fix inputs in Select by Location algorithm (backport 8d87f35)

Author: alexbruy

python/plugins/processing/algs/qgis/SelectByLocation.py

@@ -67,8 +67,8 @@ def processAlgorithm(self, progress):
         filename = self.getParameterValue(self.INPUT)
         inputLayer = dataobjects.getObjectFromUri(filename)
         method = self.getParameterValue(self.METHOD)
-        filename = self.getParameterValue(self.INTERSECT)
-        selectLayer = dataobjects.getObjectFromUri(filename)
+        filename2 = self.getParameterValue(self.INTERSECT)
+        selectLayer = dataobjects.getObjectFromUri(filename2)
         predicates = self.getParameterValue(self.PREDICATE)
 
         oldSelection = set(inputLayer.selectedFeaturesIds())