- You develop didibusDB
- I enhance it. I add a clause. (note: as an enhancer, I'm the licensor)
- Alice grabs it from me. She can just remove the clause.
This clause avoids litigation for step 3. Otherwise, for Alice to do this, YOU would have to sue. This way, the power rests with Alice.
For the "original licensor" case, the license referred to here would have been AGPL+CC. I'm not sure of a legal argument to say I can't distribute something under a modified license. The only error was false advertising -- referring to it as an AGPL or open source or whatever other license, which the court found to be true.