$ git clone -n https://src.fedoraproject.org/rpms/golang-github-spf13-viper.git /var/lib/mock/f38-build-side-42-init-devel-732301-27513/root/chroot_tmpdir/scmroot/golang-github-spf13-viper
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-732301-27513/root/chroot_tmpdir/scmroot/golang-github-spf13-viper'...
$ git fetch origin 3938519b3fc0261044590730190ffdc386afe20f:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/golang-github-spf13-viper
 * [new ref]         3938519b3fc0261044590730190ffdc386afe20f -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 3938519 Rebuilt for https://fedoraproject.org/wiki/Fedora_38_Mass_Rebuild