Merge "Fix a bug in vector reverse iteration."

                    // So that we can later easily match them with Position=Last matchers.

                    pos[prevDepth]--;

                    int path = getEncodedField(pos, prevDepth, false);

                    for (size_t j = mValues.size() - 1; j >= 0; j--) {

                        if (mValues[j].mField.getDepth() >= prevDepth &&

                            mValues[j].mField.getPath(prevDepth) == path) {

                            mValues[j].mField.decorateLastPos(prevDepth);

                    for (auto it = mValues.rbegin(); it != mValues.rend(); ++it) {

                        if (it->mField.getDepth() >= prevDepth &&

                            it->mField.getPath(prevDepth) == path) {

                            it->mField.decorateLastPos(prevDepth);

                        } else {

                            // Safe to break, because the items are in DFS order.

                            break;