how to revert back to old git branch code example

Example 1: how to revert to log in git

git revert --no-commit 0766c053..HEAD
git commit

Example 2: how to revert a git revert

git revert <commitHashOfTheRevert> # locate the hash the revert was done 
                             #this will invert the changes made in that commit
                             #and preserve the git history