$ git clone -n https://src.fedoraproject.org/rpms/libsignal-protocol-c.git /var/lib/mock/f45-build-16973-494/root/chroot_tmpdir/scmroot/libsignal-protocol-c
Cloning into '/var/lib/mock/f45-build-16973-494/root/chroot_tmpdir/scmroot/libsignal-protocol-c'...
$ git fetch origin ad42e0dcac43b3294b10d85b18e509b3d9031755:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/libsignal-protocol-c
 * [new ref]         ad42e0dcac43b3294b10d85b18e509b3d9031755 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ad42e0d Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild