THIS IS A TEST INSTANCE. ALL YOUR CHANGES WILL BE LOST!!!!
...
+------------+ +---------------+ +-----------------+
| | replica | | fork | |
| Apache Git | ==========> | GitHub Mirror | ---------> | John Doe's Fork |
| | | | | |
+------------+ +---------------+ +-----------------+
^ ^
| |
| |
| +-----------------+
| *Apache Git remote handle for committers* | |
+------------------------------------------------| Local clone |
| |
+-----------------+
...