$ git clone -n https://github.com/xcp-ng-rpms/xapi.git /var/lib/mock/v8.3-u-gtn2-8276-24467/root/chroot_tmpdir/scmroot/xapi
Cloning into '/var/lib/mock/v8.3-u-gtn2-8276-24467/root/chroot_tmpdir/scmroot/xapi'...
$ git reset --hard 53a7864027f03966948778a280c7e7a8fc773d1f
fatal: Could not parse object '53a7864027f03966948778a280c7e7a8fc773d1f'.