YT-23044: Fix loading error with no attributes

commit_hash:54923dc09457342bb6e6a2799cb9d7c6d41f1842

Author: aleksandra-zh

yt/yt/core/misc/error.cpp

@@ -172,14 +172,16 @@ TOriginAttributes ExtractFromDictionaryOverride(const NYTree::IAttributeDictiona
 
     TExtensionData ext;
 
-    static const TString FidKey("fid");
-    ext.Fid = attributes->GetAndRemove<NConcurrency::TFiberId>(FidKey, NConcurrency::InvalidFiberId);
+    if (attributes) {
+        static const TString FidKey("fid");
+        ext.Fid = attributes->GetAndRemove<NConcurrency::TFiberId>(FidKey, NConcurrency::InvalidFiberId);
 
-    static const TString TraceIdKey("trace_id");
-    ext.TraceId = attributes->GetAndRemove<NTracing::TTraceId>(TraceIdKey, NTracing::InvalidTraceId);
+        static const TString TraceIdKey("trace_id");
+        ext.TraceId = attributes->GetAndRemove<NTracing::TTraceId>(TraceIdKey, NTracing::InvalidTraceId);
 
-    static const TString SpanIdKey("span_id");
-    ext.SpanId = attributes->GetAndRemove<NTracing::TSpanId>(SpanIdKey, NTracing::InvalidSpanId);
+        static const TString SpanIdKey("span_id");
+        ext.SpanId = attributes->GetAndRemove<NTracing::TSpanId>(SpanIdKey, NTracing::InvalidSpanId);
+    }
 
     result.ExtensionData = Encode(ext);
     return result;