message: Fix the candidate filtering condition for zero query.
diff: @@ -919,7 +919,8 @@ bool DictionaryPredictor::AddPredictionToCandidates(
  if (ShouldEnrichPartialCandidates(request)) {
  // Suppress long candidates to show more candidates in the candidate view.
  - if ((input_key_len < Util::CharsLen(result.key)) &&
  + if (input_key_len > 0 && // Do not filter for zero query
  + (input_key_len < Util::CharsLen(result.key)) &&
  (predictive_count++ >= 3 || added >= 10)) {
  MOZC_ADD_DEBUG_CANDIDATE(
  result, absl::StrCat("Added predictive (",
  