$ git clone -n https://src.fedoraproject.org/rpms/libsigc++30.git /var/lib/mock/f33-build-293874-55204/root/chroot_tmpdir/scmroot/libsigc++30
Cloning into '/var/lib/mock/f33-build-293874-55204/root/chroot_tmpdir/scmroot/libsigc++30'...
$ git reset --hard 9cc212a4c7a4eb5d180ebc772c4e4103a70b212c
HEAD is now at 9cc212a - Rebuilt for https://fedoraproject.org/wiki/Fedora_33_Mass_Rebuild