BUG: fix a regression where tick direction wasn't conserved by Axis.clear()

neutrinoceros · neutrinoceros · commit 160219ba124c · 2022-09-05T22:00:45.000+02:00
diff --git a/lib/matplotlib/axis.py b/lib/matplotlib/axis.py
@@ -855,7 +855,7 @@ def _reset_major_tick_kw(self, keep_tick_and_label_visibility=False):
         *keep_tick_and_label_visibility*.
         """
         backup = {name: value for name, value in self._major_tick_kw.items()
-                  if name in ['tick1On', 'tick2On', 'label1On', 'label2On']}
+                  if name in ['tick1On', 'tick2On', 'tickdir', 'label1On', 'label2On']}
         self._major_tick_kw.clear()
         if keep_tick_and_label_visibility:
             self._major_tick_kw.update(backup)
