$ git clone -n https://src.fedoraproject.org/rpms/libsigc++20.git /var/lib/mock/f40-build-745451-112076/root/chroot_tmpdir/scmroot/libsigc++20
Cloning into '/var/lib/mock/f40-build-745451-112076/root/chroot_tmpdir/scmroot/libsigc++20'...
$ git reset --hard fc9926bd0750f1829142f8be70b72a827b0063b7
HEAD is now at fc9926b Update to 2.12.1