fix: a diagram on collection page shows incorrect number of stamps by categories when a user has an incomplete series.

Fix half of #1143

Author: php-coder

src/main/resources/sql/category_dao_queries.properties

@@ -58,7 +58,7 @@ SELECT COUNT(*) \
 
 category.count_stamps_by_categories = \
   SELECT CASE WHEN 'ru' = :lang THEN COALESCE(c.name_ru, c.name) ELSE c.name END AS name \
-       , SUM(s.quantity) AS counter \
+       , SUM(cs.number_of_stamps) AS counter \
     FROM collections_series cs \
     JOIN series s \
       ON s.id = cs.series_id \

src/test/java/ru/mystamps/web/feature/category/JdbcCategoryDaoTest.java

@@ -93,6 +93,27 @@ public void getStatisticsOfWithSeriesWithAllStamps() {
 			.hasSize(2);
 	}
 
+	@Test
+	@Sql(
+		scripts = {
+			"/db/users-coder.sql",
+			"/db/collections-coder.sql",
+			"/db/categories-fauna.sql",
+			"/db/series-1-fauna-qty5.sql",
+		},
+		statements = {
+			"INSERT INTO collections_series(collection_id, series_id, number_of_stamps) "
+				+ "VALUES (1, 1, 2)"
+		}
+	)
+	public void getStatisticsOfWithIncompleteSeries() {
+		// given
+		// when
+		Map<String, Integer> statistics = categoryDao.getStatisticsOf(1, "en");
+		// then
+		assertThat(statistics).containsEntry("Fauna", 2);
+	}
+	
 	@Test
 	@Sql(
 		scripts = {