OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=18066
Crash type: Use-of-uninitialized-value
Crash state:
std::__1::vector<std::__1::vector<Sass::SharedImpl<Sass::ComplexSelector>, std::
Sass::ComplexSelector::resolve_parent_refs
Sass::Eval::operator