Modification of a Resource by Multiple Users and Conflicts

When more than one user tries to modify the same resource in the same workspace, a checked-out version is created for each of these users. The new versions thus created receive a sequence number one higher than the latest version of the resource that was created in the current workspace. So several checked-out versions are created in the same branch with an identical sequence number (however, a controlled management of the versions is guaranteed by the individual IDs).