Bug 2690034: Fix revision iteration

mwclient/RELEASE-NOTES.txt

@@ -9,6 +9,7 @@ Mwclient 0.6.4 is unreleased.
 * Properly fix detection of alpha versions
 * Added support for builtin json library
 * Handle badtoken once
+* Bug 2690034: Fix revision iteration
 
 == Changes in version 0.6.3 ==
 * Added domain parameter to login.

mwclient/page.py

@@ -266,7 +266,7 @@ class Page(object):
 		kwargs['rvprop'] = prop
 		if expandtemplates: kwargs['rvexpandtemplates'] = '1'
 		
-		return listing.PageProperty(self, 'revisions', 'rv', limit = limit, **kwargs)
+		return RevisionsIterator(self, 'revisions', 'rv', limit = limit, **kwargs)
 	def templates(self, namespace = None, generator = True):
 		self.site.require(1, 8)
 		kwargs = dict(listing.List.generate_kwargs('tl', namespace = namespace))
@@ -313,3 +313,9 @@ class Image(Page):
 	def __repr__(self):
 		return "<Image object '%s' for %s>" % (self.name.encode('utf-8'), self.site)
 	
+class RevisionsIterator(listing.PageProperty):
+	def load_chunk(self):
+		if 'rvstartid' in self.args and 'rvstart' in self.args:
+			del self.args['rvstart']
+		return listing.PageProperty.load_chunk(self)
+	
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