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Rolling back a remote Git repository
I have created a project in PHP and I pushed it to GitHub. However I never pulled anything, because I work alone so I don't think that should cause any conflict, because I am always updated with my Github repository. Today I did a lot of changes in various files and I pushed it to Github repository, now I want to discard them all, instead of pushing them again, is there anything that I can get back to my previous revision by using any GitHub command?