keyworder: always keep combinations

* FIX Removes a bug in bibclassify_keyword_analyzer.py. If a combination
  is found via a synonym or regexp it is no longer thrown away just
  because the components of the combination are not found in the text.

Reviewed-by: Jan Aage Lavik <jan.age.lavik@cern.ch>
Signed-off-by: Florian Schwennsen <schwenn@l00slschwennsen.desy.de>

invenio_classifier/keyworder.py

@@ -148,7 +148,7 @@ def get_composite_keywords(ckw_db, fulltext, skw_spans):
         except KeyError:
             # Some of the keyword components are not to be found in the text.
             # Therefore we cannot continue because the match is incomplete.
-            continue
+            pass
 
         ckw_spans = []
         for index in range(len(spans) - 1):