$ git clone -n https://gitee.com/zhonglingh/python-mmcv.git /var/lib/mock/dist-an23-epao-build-343920-70026/root/chroot_tmpdir/scmroot/python-mmcv
Cloning into '/var/lib/mock/dist-an23-epao-build-343920-70026/root/chroot_tmpdir/scmroot/python-mmcv'...
$ git reset --hard a23-1.7
fatal: ambiguous argument 'a23-1.7': unknown revision or path not in the working tree.
Use '--' to separate paths from revisions, like this:
'git <command> [<revision>...] -- [<file>...]'