$ git clone -n https://github.com/xcp-ng-rpms/xapi.git /var/lib/mock/v8.3-testing-4395-4496/root/chroot_tmpdir/scmroot/xapi
Cloning into '/var/lib/mock/v8.3-testing-4395-4496/root/chroot_tmpdir/scmroot/xapi'...
$ git reset --hard 29995425fe569d7db3e37a230a215690ea619318
fatal: Could not parse object '29995425fe569d7db3e37a230a215690ea619318'.