Hi,
The “lock project” task prevent anyone from updating the project name of a task. But this is not enough because anybody can update the content of the project so that this is a completely different project that is launched by the task.
A real “lock project” would be to prevent updates of the task AND of the project content : nobody would be able to remove or update the project in the browser part, as well as the project name inside the task.
What do you think ?