$ git clone -n https://gitee.com/zhangbinchen/thunderbird.git /var/lib/mock/dist-an23-build-190731-60788/root/chroot_tmpdir/scmroot/thunderbird
Cloning into '/var/lib/mock/dist-an23-build-190731-60788/root/chroot_tmpdir/scmroot/thunderbird'...
$ git reset --hard dae8aae61e4380f3fd0d180514027fb68cabe012
HEAD is now at dae8aae readme: add desc for branch