Merge branch 'ann_base_bug' into 'develop'

Fixing bug related to incorrect base forms

See merge request !8

src/libmwereader/mwereader.cpp

@@ -135,8 +135,11 @@ bool MWEReader::registered = TokenReader::register_path_reader<MWEReader>(
 			tokens[head]->create_metadata();
 		}
 		TokenMetaDataPtr md = tokens[head]->get_metadata();
+		std::string curr_base = md->get_attribute(get_annotation_channel_base_name());
+		// set new base only if it is longer than current one (if exists)
+		if (new_base.length() > curr_base.length()) {
 			md->set_attribute(get_annotation_channel_base_name(), new_base);
-
+		}
 		// annotate mwe elements with annotation_number of head
 		std::set<int>::iterator pos_it;
 		int ann_num;