$ git clone -n https://src.fedoraproject.org/rpms/alglib.git /var/lib/mock/f31-build-74845-31189/root/chroot_tmpdir/scmroot/alglib
Cloning into '/var/lib/mock/f31-build-74845-31189/root/chroot_tmpdir/scmroot/alglib'...
$ git reset --hard d7ab6c0056930c5f92a66b1680ad915b821b915a
HEAD is now at d7ab6c0 - Rebuilt for https://fedoraproject.org/wiki/Fedora_31_Mass_Rebuild