Shortly after Jackson deploys the Sangraal to the Ori home galaxy through a Supergate, the pre-programmed restoration Merlin encoded into Jackson's DNA activated, restoring Jackson to a state before he looked into the repository, destroying Merlin's consciousness.
The pre-programmed restoration Merlin encoded into Jackson's DNA activated. The pre-programmed restoration Merlin was restoring Jackson to a state. He looked into the repository. He was destroying Merlin's consciousness. Jackson deploys the Sangraal to the Ori home galaxy through a Supergate.