$ git clone -n https://gitee.com/rabbitali/gcc.git /var/lib/mock/dist-an27-pre-build-580199-94822/root/chroot_tmpdir/scmroot/gcc
Cloning into '/var/lib/mock/dist-an27-pre-build-580199-94822/root/chroot_tmpdir/scmroot/gcc'...
$ git reset --hard master
fatal: ambiguous argument 'master': unknown revision or path not in the working tree.
Use '--' to separate paths from revisions, like this:
'git <command> [<revision>...] -- [<file>...]'