--- a/Plugins/VcsPlugins/vcsSubversion/SvnRevisionSelectionDialog.py	Thu Mar 21 19:26:10 2019 +0100
+++ b/Plugins/VcsPlugins/vcsSubversion/SvnRevisionSelectionDialog.py	Thu Mar 21 19:27:42 2019 +0100
@@ -82,6 +82,8 @@
         elif prevButton.isChecked():
             return "PREV"
         
+        return ""
+        
     def getRevisions(self):
         """
         Public method to get the revisions.