--- ./MoinMoin/config/__init__.py.orig	2014-10-17 22:45:32.000000000 +0300
+++ ./MoinMoin/config/__init__.py	2015-12-06 11:57:48.923411442 +0200
@@ -58,6 +58,9 @@ page_invalid_chars_regex = re.compile(
     ur"""
     \u0000 | # NULL
 
+    \# | # http://tools.ietf.org/html/rfc3986#section-3.3
+    \? |
+
     # Bidi control characters
     \u202A | # LRE
     \u202B | # RLE