$ git clone -n https://github.com/xcp-ng-rpms/blktap.git /var/lib/mock/v8.3-u-dtt1-7878-22571/root/chroot_tmpdir/scmroot/blktap
Cloning into '/var/lib/mock/v8.3-u-dtt1-7878-22571/root/chroot_tmpdir/scmroot/blktap'...
$ git reset --hard bab69cda5d109bf17cdf9a9269fb0ef11eb75ab2
fatal: Could not parse object 'bab69cda5d109bf17cdf9a9269fb0ef11eb75ab2'.