Loop over children iter after expanded the autodetected parent

issue10813
review375641003
(grafted from 81f7ed3823caa12346156a1d37f55aa67775bd40)

--HG--
branch : 6.0

tryton/gui/window/win_import.py

@@ -133,9 +133,12 @@ class WinImport(WinCSV):
                                     (prefix + parent):
                                 self.on_row_expanded(self.view1, iter,
                                         self.model1.get_path(iter))
+                                iter = self.model1.iter_children(iter)
+                                prefix = parent + '/'
                                 break
-                            iter = self.model1.iter_next(iter)
-                        prefix = parent + '/'
+                            else:
+                                iter = self.model1.iter_next(iter)
+
                 if word in self.fields_invert:
                     name = word
                     field = self.fields_invert[word]