FIX: Restore the accidentally deleted query prefix.

Author: romanrizzi

lib/embeddings/strategies/truncation.rb

@@ -28,7 +28,8 @@ def prepare_target_text(target, vdef)
         end
 
         def prepare_query_text(text, vdef, asymetric: false)
-          qtext = asymetric ? "#{vdef.asymmetric_query_prefix} #{text}" : text
+          asymmetric_query_prefix = "Represent this sentence for searching relevant passages:"
+          qtext = asymetric ? "#{asymmetric_query_prefix} #{text}" : text
           max_length = vdef.max_sequence_length - 2
 
           vdef.tokenizer.truncate(text, max_length)