python-tgext.admin is marked for autoremoval from testing

[Debian testing autoremoval watch]

python-tgext.admin 0.2.6-3 is marked for autoremoval from testing on 2017-11-09

It (build-)depends on packages with these RC bugs:
876932: sphinx-issuetracker: sphinx-issuetracker FTBFS with Sphinx 1.6: 
KeyError: 'refdomain'