Description of problem:
Similarly to bug 983634 that has been ignored, the whole business-central is single-user only. Collaboration does not work. The last user saving an asset of any type wins.

If two users edit an asset at the same time, the last commit/save overwrites changes made by the first commit/save. Users are in no way warned that someone else is making changes, there are no conflicts in git.

This is not the type of behaviour one would expect of production ready application using git.

I'd expect at least a warning. Warning before editing the asset, in the worst case upon saving the changes (optimistic locking). In that case, user shouldn't be allowed to save the changes, because that would overwrite the previous commit. This would still mean the loss of work, but at least the user would notice.
If both commits/saves are allowed, then there should be some way to merge them. This would be ideal.

Version-Release number of selected component (if applicable):
6.0 ER1