I apologize if I'm not submitting this correctly.

Here're the system details:
Environment:
Redmine version 2.6.1.stable
Ruby version 2.0.0-p594 (2014-10-27) [i386-mingw32]
Rails version 3.2.21
Environment production
Database adapter Mysql2
SCM:
Subversion 1.8.10
Git 1.9.5
Filesystem

Redmine plugins:
no plugin installed

We have found that when more than one person tries to edit an issue at the same time, we experience a loss of data. I couldn't find any report of this in the known bugs list, or any mention in the FAQ. I did a general search as well, and the only similar issue was for a wiki problem. #2876