Hi 
It was Tim who offered to post the bug-report. I am sure both Tim and
Virgil understand who your thanks are aimed at
Such confusions easily
arise on mailing-lists and both are very experienced with these sorts of
things. 
Posting a bug-report is not as difficult as it sounds. There are various
guides and differing opinions on how to post a perfect bug-report but the
basic thing to remember is that it's always possible to add more to your
bug-report later so your first attempt does not have to be perfect, or even
good. Also there is a team of QA personnel who help triage bugs and are
usually happy to help newbies improve their bug-reports. After doing your
first report the documentation on how to post a perfect report might make
more sense and might help you improve yours.
The bug-report itself is much like posting an e-mail. You just need to
write a good subject-line, maybe copy&paste the one you used for this
e-mail thread or maybe tweak it to something like "Bold stays activated
even after being switched off".
First thing is to register at the bug-reporting website. This is the bit
that puts most people off but it's really not that tough. You have made it
to this list and registered at Nabble so registering at the bug-reporting
place should be much easier for you. Once you have registered it's easier
for any other issues you might spot in the future or to add helpful
comments to the bug-report that gets posted about this issue.
These guides help. Both aim at helping you post a perfect bug-report so
don't worry too much about trying to do everything they say. Some people
find the 1st link more useful because it's a nice pretty gui that helps
point&click users by hiding most of the options;
https://www.libreoffice.org/get-help/bug/
Other people find the 2nd link more useful for exactly the same reason (ie
that it doesn't hide anything and allows more flexibility);
https://wiki.documentfoundation.org/QA/BugReport
If you do go for it you can always ask us for help and advice if you do get
stuck but i think you'll be surprised at how much easier it is than the
guides or reputation makes it sound! 
Good luck and regards from
Tom 