$ git clone -n https://src.fedoraproject.org/rpms/ntp-refclock.git /var/lib/mock/f31-build-63676-29418/root/chroot_tmpdir/scmroot/ntp-refclock
Cloning into '/var/lib/mock/f31-build-63676-29418/root/chroot_tmpdir/scmroot/ntp-refclock'...
$ git reset --hard b6f67be350e782e05dd53b8cc616886efa15a4e7
HEAD is now at b6f67be - Rebuilt for https://fedoraproject.org/wiki/Fedora_31_Mass_Rebuild