$ git clone -n https://src.fedoraproject.org/rpms/libsigc++20.git /var/lib/mock/f33-build-127391-40251/root/chroot_tmpdir/scmroot/libsigc++20
Cloning into '/var/lib/mock/f33-build-127391-40251/root/chroot_tmpdir/scmroot/libsigc++20'...
$ git reset --hard f8e7425b2b668e0ea4a6a2620e9ffad6c52bfb5e
HEAD is now at f8e7425 - Rebuilt for https://fedoraproject.org/wiki/Fedora_32_Mass_Rebuild