How to Fork after Go Get Grafana

The resolution to my issue with creating a React panel was to use the “stock” Grafana I cloned using “Go Get.” This means that to test the changes I made to add the ability to set a variable from within a panel (see https://github.com/grafana/grafana/issues/22477), I need to make them again to stock Grafana. This opens up the door to contribute those changes back. But it’s not obvious to me how to get from where I am after following the instruction to use “Go Get” to get the stock Grafana to create a fork from that stock Grafana to enable me to push something to somewhere I could generate a PR from.

Are the steps you published really the ones people who are actively creating PRs are using? If so, how are they bridging this gap?