$ git clone -n https://src.fedoraproject.org/rpms/libibcommon.git /var/lib/mock/f31-build-93966-32453/root/chroot_tmpdir/scmroot/libibcommon
Cloning into '/var/lib/mock/f31-build-93966-32453/root/chroot_tmpdir/scmroot/libibcommon'...
$ git reset --hard 51f8e4019acb1c3507d0e1090e9b610cd44e4d7e
HEAD is now at 51f8e40 - Rebuilt for https://fedoraproject.org/wiki/Fedora_31_Mass_Rebuild