topic: add tests to demonstrate topic confuses the branchhead checking logic
While topics are in play, we store the branchheads (which has a topic)
in "branchname:topicname" format. After digging into it I found that
even in the case when we should have branch heads for "bname:tname"
we get heads for "bname".
The tests output reflect the confusion in branch head checking logic.
Next patch will be fixing the problem.
syntax: re
/figures/[^/]+\.png$
^html/
\.pyc$
~$
\.swp$
\.orig$
\.rej$
^tests/.*\.err$
^tests/easy_run.sh$
^build/
^dist/
^MANIFEST$
^docs/tutorials/.*\.rst$
\.ico$
tests/\.testtimes
^docs/training/graphs/
^docs/training/html/
^docs/training/index.html
^docs/training/graphviz-images/
^docs/training/img/
^docs/training/output/
^docs/training/pandocfilters/