Weird behaviour with g:visualstar_extra_commands='gn'

[kocakosm]

I have a very strange behaviour with g:visualstar_extra_commands='gn' (selects the current match).
It's quite difficult to describe, so let me explain how to reproduce it instead....
First, enter the following text in Vim:
test test
test test test test
test test test test
test
test test test
test test
Position the cursor on the first character of the first line and type 'wvee' in normal mode. Now, hit successively '*'... It behaves exactly as expected until it reaches the fourth line: the search gets stuck there.
I have tested this in Vim 7.4.576 (on Debian Jessie) and in Vim 8.0.3 (on Debian Stretch).

[kocakosm]

After some investigation, this may be related to a Vim bug. See https://groups.google.com/forum/#!topic/vim_use/ryCHT9Y-ih0 for more information.