TEST(QueryProjectionTest, MetaProjectionDoesNotPreserveChild) {
    auto proj = createProjection("{}", "{a: {$meta: 'textScore'}}");
    ASSERT_FALSE(proj.isFieldRetainedExactly("a.b"));
}
TEST(QueryProjectionTest, MetaProjectionDoesNotPreserveChild) {
    auto proj = createProjection("{}", "{a: {$meta: 'textScore'}}");
    ASSERT_FALSE(proj.isFieldRetainedExactly("a.b"));
}