fix(series import): extract a year when date in dd.mm.yyyy format.

Part of #1287

Author: php-coder

src/main/java/ru/mystamps/web/feature/series/importing/SeriesInfoExtractorServiceImpl.java

@@ -51,8 +51,9 @@ public class SeriesInfoExtractorServiceImpl implements SeriesInfoExtractorServic
 	protected static final int MAX_SUPPORTED_RELEASE_YEAR = 2099;
 
 	// Regular expression matches release year of the stamps (from 1840 till 2099).
+	// CheckStyle: ignore LineLength for next 2 lines
 	private static final Pattern RELEASE_YEAR_REGEXP =
-		Pattern.compile("(?<year>18[4-9][0-9]|19[0-9]{2}|20[0-9]{2})(г(од|\\.)?)?");
+		Pattern.compile("([0-9]{2}\\.[0-9]{2}\\.)?(?<year>18[4-9][0-9]|19[0-9]{2}|20[0-9]{2})(г(од|\\.)?)?");
 
 	// Regular expression matches number of the stamps in a series (from 1 to 999).
 	// CheckStyle: ignore LineLength for next 2 lines

src/test/groovy/ru/mystamps/web/feature/series/importing/SeriesInfoExtractorServiceImplTest.groovy

@@ -295,6 +295,7 @@ class SeriesInfoExtractorServiceImplTest extends Specification {
 			'2010год'                        | _
 			'Палау 2010, 2 малых листа'      | _
 			'test,2010'                      | _
+			'01.02.2010'                     | _
 	}
 
 	@SuppressWarnings('UnnecessaryGetter')