Steps to reproduce:
1. login as admin
1. create a new Web Project
2. configure the OOTB Web Site Submit workflow for the new Web Project for ".*" (all files). Configure "admin" as the sole reviewer in the workflow.
3. in the admin user's user sandbox, upload a new file (it doesn't matter what it is)
4. navigate to the modified items list for the admin user's user sandbox
5. submit the file uploaded in step 3 to workflow, with a label of "first" and a description of "first"
6. submit the file again, this time with a label of "second" and a description of "second"
- the second submission is disallowed
- the second submission is allowed, and both the "first" and "second" tasks show up in the admin user's "My Tasks ToDo" list on the "My Alfresco" page