message: Missed ScopedUnref in ResourceGather
diff: @@ -503,6 +503,7 @@ class ResourceGatherOp : public OpKernel {
  void Compute(OpKernelContext* c) override {
  Var* v = nullptr;
  OP_REQUIRES_OK(c, LookupResource(c, HandleFromInput(c, 0), &v));
  + core::ScopedUnref su(v);
  // NOTE: We hold the lock for the whole gather operation instead
  // of increasing the reference count of v->tensor() to avoid a
  // situation where a write to the same variable will see a
  