Tempo: Fix empty values in TraceQL filters (#76544)

Fix empty values in TraceQL filters

public/app/plugins/datasource/tempo/SearchTraceQLEditor/SearchField.tsx

@@ -81,7 +81,9 @@ const SearchField = ({
     setError,
     query,
   ]);
-  if (filter.value && options && !options.find((o) => o === filter.value)) {
+
+  // Add selected option if it doesn't exist in the current list of options
+  if (filter.value && !Array.isArray(filter.value) && options && !options.find((o) => o.value === filter.value)) {
     options.push({ label: filter.value.toString(), value: filter.value.toString(), type: filter.valueType });
   }