$ git clone -n https://src.fedoraproject.org/rpms/libnbd.git /var/lib/mock/f31-build-69681-30336/root/chroot_tmpdir/scmroot/libnbd
Cloning into '/var/lib/mock/f31-build-69681-30336/root/chroot_tmpdir/scmroot/libnbd'...
$ git reset --hard ec2e1367e33494e6ca68ff749cbbc5779b1b6301
HEAD is now at ec2e136 New upstream verison 0.9.6.