$ git clone -n https://src.fedoraproject.org/rpms/coin-or-Ipopt.git /var/lib/mock/f31-build-65896-29794/root/chroot_tmpdir/scmroot/coin-or-Ipopt
Cloning into '/var/lib/mock/f31-build-65896-29794/root/chroot_tmpdir/scmroot/coin-or-Ipopt'...
$ git reset --hard dec80ff09679a753692afc7a89c6503e6bb5cd6d
HEAD is now at dec80ff - Rebuilt for https://fedoraproject.org/wiki/Fedora_31_Mass_Rebuild