Add an abort criterion when exporting query results

app/corpora/events.py

@@ -245,6 +245,8 @@ def corpus_analysis_get_match_with_full_context(payload):
     i = 0
     # Send data one match at a time.
     for index, f_cpos, l_cpos in zip(data_indexes, first_cpos, last_cpos):
+        if client.status == 'abort':
+            break
         i += 1
         matches = []
         cpos_lookup = text_lookup = {}