$ git clone -n https://github.com/xcp-ng-rpms/kexec-tools.git /var/lib/mock/v8.3-u-tescande1-6047-11445/root/chroot_tmpdir/scmroot/kexec-tools
Cloning into '/var/lib/mock/v8.3-u-tescande1-6047-11445/root/chroot_tmpdir/scmroot/kexec-tools'...
$ git reset --hard a539fd6b39e3357e96fa20c498c563155df0602a
fatal: Could not parse object 'a539fd6b39e3357e96fa20c498c563155df0602a'.