$ git clone -n https://github.com/xcp-ng-rpms/avago-mpt3sas.git /var/lib/mock/v8.3-base-3948-3894/root/chroot_tmpdir/scmroot/avago-mpt3sas
Cloning into '/var/lib/mock/v8.3-base-3948-3894/root/chroot_tmpdir/scmroot/avago-mpt3sas'...
$ git reset --hard 4068795128391894ca3d99e8c548f7a0a3c65f6b
fatal: Could not parse object '4068795128391894ca3d99e8c548f7a0a3c65f6b'.