Handle nulls correctly in table text
Handle nulls correctly in table text

--HG--
extra : transplant_source : %F2%88%7C%C3%E7%FE%07%9C5NhYaq%9F%B9%E8%9B%B9%F8

mindw/html5lib-python,gsnedders/html5lib-python,mindw/html5lib-python,mgilson/html5lib-python,dstufft/html5lib-python,gsnedders/html5lib-python,html5lib/html5lib-python,alex/html5lib-python,alex/html5lib-python,ordbogen/html5lib-python,html5lib/html5lib-python,ordbogen/html5lib-python,mindw/html5lib-python,mgilson/html5lib-python,alex/html5lib-python,dstufft/html5lib-python,dstufft/html5lib-python,mgilson/html5lib-python,html5lib/html5lib-python,ordbogen/html5lib-python