Bugfix: Old envelope is deleted.

src/main/java/eu/simstadt/regionchooser/RegionExtractor.java

@@ -112,7 +112,7 @@ private static String replaceEnvelopeInHeader(String header, Envelope envelope,
 		double zMin = 0;
 		double zMax = 0;
 		Pattern boundedByPattern = Pattern.compile(
-				"(?is)<gml:boundedBy>.*?<gml:lowerCorner>(.*?)</gml:lowerCorner>\\s*<gml:upperCorner>(.*?)</gml:upperCorner>.*?</gml:boundedBy>");
+				"(?is)<gml:boundedBy>.*?<gml:lowerCorner[^>]*>(.*?)</gml:lowerCorner>\\s*<gml:upperCorner[^>]*>(.*?)</gml:upperCorner>.*?</gml:boundedBy>");
 		Matcher matcher = boundedByPattern.matcher(header);
 		String headerWithoutEnvelope = header;
 		if (matcher.find()) {

src/test/java/eu/simstadt/regionchooser/RegionExtractorTests.java

@@ -168,6 +168,7 @@ void testExtractBuildingsFrom2Citygmls() throws Throwable {
 	void testExtractBuildingsAndRemoveOld() throws Throwable {
 		String wktPolygon = "POLYGON((293229.6831819388 5623753.072371232,293681.22751166753 5623744.274551504,293668.8482257676 5623469.512992135,293197.09954629745 5623504.821467172,293229.6831819388 5623753.072371232))";
 		Path citygmlPath = TEST_REPOSITORY.resolve("Others.proj/Aachen_LoD2_293_5623_1_NW.gml");
+		//NOTE: This file has <gml:lowerCorner srsDimension="3"> and not just <gml:lowerCorner>, which caused problems with parsing.
 
 		StringWriter gmlWriter = new StringWriter();
 		int count = RegionExtractor.selectRegionDirectlyFromCityGML(wktPolygon, "EPSG:25832", gmlWriter, citygmlPath);