If you mean
@xtsho then it will be some genetics that he’s playing around with and reversing to generate female pollen for feminised seeds.
Actually that was a Moroccan landrace that started flowering like that under 18/6. The picture was taken in the greenhouse where I had moved it to keep it isolated. That was just the top and there were some branches down below with mostly female flowers. It pollinated itself and I helped it along somewhat with a small paintbrush. I have about 50 seeds from it in a vial.
There are many strains that are not ruderalis and are considered semi autoflowering as some will autoflower, some won't, some will flower early.
Without manipulation by selective breeding plants like this are not all that uncommon in the wild. I'm actually glad to have those seeds. I have no plans for them right now other than storing them. But I may play around with them in the future to try and create an autoflowering plant that doesn't have ruderalis in it. But a project like that will take years and I may never get to it. I have enough genetics to last a very long time. Most I haven't even touched.