Fix copy constructor of ConverterProperties to copy immediateFlush

DEVSIX-6984

Author: vitali.prudnikovich

src/main/java/com/itextpdf/html2pdf/ConverterProperties.java

@@ -145,6 +145,7 @@ public ConverterProperties(ConverterProperties other) {
         this.charset = other.charset;
         this.metaInfo = other.metaInfo;
         this.limitOfLayouts = other.limitOfLayouts;
+        this.immediateFlush = other.immediateFlush;
     }
 
     /**

src/test/java/com/itextpdf/html2pdf/ConverterPropertiesTest.java

@@ -74,6 +74,24 @@ public void setEventMetaInfoAndGetTest() {
         Assert.assertSame(testMetaInfo, metaInfo);
     }
 
+    @Test
+    public void checkDefaultsTest() {
+        ConverterProperties properties = new ConverterProperties();
+
+        Assert.assertTrue(properties.isImmediateFlush());
+        Assert.assertFalse(properties.isCreateAcroForm());
+        Assert.assertEquals(10, properties.getLimitOfLayouts());
+
+        properties.setImmediateFlush(false);
+        properties.setCreateAcroForm(true);
+        properties.setLimitOfLayouts(20);
+        ConverterProperties propertiesCopied = new ConverterProperties(properties);
+
+        Assert.assertFalse(propertiesCopied.isImmediateFlush());
+        Assert.assertTrue(propertiesCopied.isCreateAcroForm());
+        Assert.assertEquals(20, propertiesCopied.getLimitOfLayouts());
+    }
+
     private static class TestMetaInfo implements IMetaInfo {
     }
 }