After two weeks testing Mantis 1.2.0rc1, all the problems I found was
solved. Some of them with help of the good souls that use to read
these groups :D but most of them was already solved and reported in
the bugtracker (last problem we detected was reported and solved here
http://www.mantisbt.org/bugs/view.php?id=10655). Accessing the "diff"
content of the changed files, and applying the same changes to my
local files, my problems went away and I am using this version in
production in a team 20 users since the day before yesterday. No more
problems so far.
Thank you all who worked on those solutions!
So I believe is time to 1.2.0rc2. If you need a brave team to test rc2
here we are! :-)