$ git clone -n https://src.fedoraproject.org/rpms/gsl.git /var/lib/mock/f31-build-113845-34417/root/chroot_tmpdir/scmroot/gsl
Cloning into '/var/lib/mock/f31-build-113845-34417/root/chroot_tmpdir/scmroot/gsl'...
$ git reset --hard 03e20deb84e3dece6c3267e1371bcf72265005ad
HEAD is now at 03e20de - Rebuilt for https://fedoraproject.org/wiki/Fedora_31_Mass_Rebuild