$ git clone -n https://gitee.com/fundawang/libtiff.git /var/lib/mock/dist-an23-build-193690-60836/root/chroot_tmpdir/scmroot/libtiff
Cloning into '/var/lib/mock/dist-an23-build-193690-60836/root/chroot_tmpdir/scmroot/libtiff'...
$ git fetch origin 4cb3c694ad8cac0852c26ce9db67d1f12bdccbf9:KOJI_FETCH_HEAD
From https://gitee.com/fundawang/libtiff
 * [new ref]         4cb3c694ad8cac0852c26ce9db67d1f12bdccbf9 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 4cb3c69 br glut