$ git clone -n https://gitee.com/alpha-wang/nettle.git /var/lib/mock/dist-an23.1-devel-build-367386-71324/root/chroot_tmpdir/scmroot/nettle
Cloning into '/var/lib/mock/dist-an23.1-devel-build-367386-71324/root/chroot_tmpdir/scmroot/nettle'...
$ git fetch origin 8357f22ffe233886501a8de5844ad630c8e4a6dc:KOJI_FETCH_HEAD
From https://gitee.com/alpha-wang/nettle
 * [new ref]         8357f22ffe233886501a8de5844ad630c8e4a6dc -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 8357f22 download to 3.8.1