convert: svn: add an early return to move most changeset parsing out an indent level

hgext/convert/subversion.py

@@ -218,7 +218,9 class convert_svn(converter_source):
             copies = {}
             entries = []
             self.ui.debug("Parsing revision %d\n" % revnum)
-            if orig_paths is not None:
+            if orig_paths is None:
+                return
+
                 rev = self.rev(revnum)
                 try:
                     branch = self.module.split("/")[-1]