fix: reject a lone '@' as a reference name, like Git does - #2886

fix: reject a lone '@' as a reference name, like Git does#2886

Sebastian Thiel (Byron) merged 2 commits into

GitoxideLabs:mainGitoxideLabs/gitoxide:mainfrom

ameyypawar:validate-at-refnameameyypawar/gitoxide:validate-at-refnameCopy head branch name to clipboard