Scientists find out they were somewhat wrong about photosynthesis

That's not the title. The submitter put a clickbait title, but maybe they did it only to make the title short enough.

The original title was "Scientists accidentally discover photosynthesis doesn't work exactly like we thought it did."

And it had subtitle "Researchers have serendipitously discovered that a key step in photosynthesis can occur much earlier in the process than previously believed."