mw-zip fetches articles twice (?)

[jojo]

mw-zip -c http://simple.pediapress.com/w -o test.zip "MarkupReference/FontReference"
mwlib.utils.info >> fetching 'http://simple.pediapress.com/w/api.php?action=query&meta=siteinfo&format=json'
mwlib.utils.info >> got 'http://simple.pediapress.com/w/api.php?action=query&meta=siteinfo&format=json' (295 Bytes)
Status: parsing
Progress: 0%
mwlib.utils.info >> fetching 'http://simple.pediapress.com/w/api.php?redirects=1&titles=MarkupReference%2FFontReference&format=json&action=query&rvprop=content&prop=revisions'
mwlib.utils.info >> got 'http://simple.pediapress.com/w/api.php?redirects=1&titles=MarkupReference%2FFontReference&format=json&action=query&rvprop=content&prop=revisions' (1146 Bytes)
mwlib.utils.info >> fetching 'http://simple.pediapress.com/w/api.php?redirects=1&titles=MarkupReference%2FFontReference&format=json&action=query&rvprop=content&prop=revisions'
mwlib.utils.info >> got 'http://simple.pediapress.com/w/api.php?redirects=1&titles=MarkupReference%2FFontReference&format=json&action=query&rvprop=content&prop=revisions' (1146 Bytes)
mwlib.utils.info >> fetching 'http://simple.pediapress.com/w/api.php?redirects=1&titles=MarkupReference%2FFontReference&rvlimit=500&format=json&action=query&rvprop=user|ids|flags|comment&prop=revisions'
mwlib.utils.info >> got 'http://simple.pediapress.com/w/api.php?redirects=1&titles=MarkupReference%2FFontReference&rvlimit=500&format=json&action=query&rvprop=user|ids|flags|comment&prop=revisions' (355 Bytes)
mwlib.utils.info >> fetching 'http://simple.pediapress.com/w/api.php?action=query&meta=siteinfo&siprop=interwikimap&format=json'