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man git-rev-parsedescribes this.HEAD@{1}is the previous value of symbolicHEADin thereflogwhereasHEAD^is the (first) parent revision of the currentHEAD. These two need nod be equivalent (e.g. after a rebase, a hard reset, a branch switch and such things). Do read the linked article for reflog. Cheersgit reset HEAD@`{1`}HEAD@`{1`}, or for that matter do what works on POSIX shells too:'HEAD@{1}'