$ git clone -n https://gitee.com/mgb01105731/libunistring.git /var/lib/mock/dist-an23-build-140522-53403/root/chroot_tmpdir/scmroot/libunistring
Cloning into '/var/lib/mock/dist-an23-build-140522-53403/root/chroot_tmpdir/scmroot/libunistring'...
$ git reset --hard 4291ab1a026577af33d5f04394337e63a1f81e0f
HEAD is now at 4291ab1 optimise spec file & add doc package