Smart server question

Hi,

We are currently evaluating the use of Bazaar-NG for our repositories. We are very interested in the smart server that is being worked on but have a question regarding it.

Is it possible for multiple developers to push to the same server so long as there are no conflicts? For example, 2 developers have branches off the trunk and one developer pushes his changes to the smart server and then the other developer decides to do the same. We do not want that the second developer would have to merge the trunk back into his private branch first before he can merge his changes into the trunk. Only if there are conflicts with the first developer would this be needed. So essentially the server accepts requests to merge in changes (would these be bzr bundles?) into itself from the private branches and only if it encounters a conflict while doing so will it ask that developer to merge trunk to his private branch.

This would be similar to how svn will allow you to commit to the server as long as you have not modified a file that has been modified on the trunk.

The reason I ask is that we have a high commit rate on the trunk and always having to keep merging the trunk into your branch before you can push your changes to the trunk would be annoying.

I hope my question is not a stupid one. Bzr really looks like an amazing VCS!

Thanks in advance,

Nicholas Allen