I don't really know how this was broken but a change from

b4495eb#diff-f7f065aa241603d275d21b8e191fa844 broke the test plone.app.testing.layers_zserver.rst
zopefoundation · May 13, 2019 · 339dd82 · 339dd82 · pbauer · May 17, 2019
1 parent 7e00e07
commit 339dd82
Showing 1 changed file with 2 additions and 2 deletions.
diff --git a/src/OFS/ObjectManager.py b/src/OFS/ObjectManager.py
@@ -769,8 +769,8 @@ def manage_FTPlist(self, REQUEST):
 
             files.sort()
 
-            if not hasattr(self, 'isTopLevelPrincipiaApplicationObject') and \
-               self.isTopLevelPrincipiaApplicationObject:
+            if not (hasattr(self, 'isTopLevelPrincipiaApplicationObject') and
+                    self.isTopLevelPrincipiaApplicationObject):
                 files.insert(0, ('..', aq_parent(self)))
             files.insert(0, ('.', self))
             for k, v in files: