I have logged a Bug in JIRA and i didn't close that bug in my browser. One of my colleague updated the description of the bug in his system and saved it. Later after 2 hours i have done some changes in the bug page which remains open in my system from the time of creation. I have saved my changes. I didn't got any message or warning like there are new changes in the bug description. Instead my changes are committed and all the changes my colleague done for 2 hours got overridden. This makes us to do all the work once again to update his changes. But the history captures the changes which my colleague made but it will be good if the user is notified for any new changes before he commits any changes. This is really a needed feature.