Nullpointer in XHTML parser with 2 <blockquote> inside a <blockquote>

org.xwiki.rendering.parser.ParseException: Failed to parse input source
	at org.xwiki.rendering.internal.parser.wikimodel.AbstractWikiModelParser.parse(AbstractWikiModelParser.java:132)
	at org.xwiki.rendering.internal.parser.wikimodel.AbstractWikiModelParser.parse(AbstractWikiModelParser.java:95)
	at org.xwiki.rendering.test.integration.RenderingTest.runTestInternal(RenderingTest.java:130)
	at org.xwiki.rendering.test.integration.RenderingTest.execute(RenderingTest.java:103)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:606)
	at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:50)
	at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
	at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47)
	at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
	at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:325)
	at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:78)
	at org.xwiki.rendering.test.integration.RenderingTestSuite$TestClassRunnerForParameters.runChild(RenderingTestSuite.java:188)
	at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:57)
	at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290)
	at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71)
	at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288)
	at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58)
	at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268)
	at org.junit.runners.ParentRunner.run(ParentRunner.java:363)
	at org.junit.runners.Suite.runChild(Suite.java:128)
	at org.junit.runners.Suite.runChild(Suite.java:27)
	at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290)
	at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71)
	at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288)
	at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58)
	at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268)
	at org.junit.runners.ParentRunner.run(ParentRunner.java:363)
	at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:86)
	at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:459)
	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:675)
	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:382)
	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:192)
Caused by: org.xwiki.rendering.wikimodel.WikiParserException: java.lang.NullPointerException
	at org.xwiki.rendering.wikimodel.xhtml.XhtmlParser.parse(XhtmlParser.java:134)
	at org.xwiki.rendering.internal.parser.wikimodel.AbstractWikiModelParser.parse(AbstractWikiModelParser.java:130)
	... 35 more
Caused by: java.lang.NullPointerException
	at org.xwiki.rendering.wikimodel.impl.InternalWikiScannerContext.beginQuotLine(InternalWikiScannerContext.java:415)
	at org.xwiki.rendering.wikimodel.impl.WikiScannerContext.beginQuotLine(WikiScannerContext.java:208)
	at org.xwiki.rendering.wikimodel.xhtml.handler.QuoteTagHandler.begin(QuoteTagHandler.java:52)
	at org.xwiki.rendering.wikimodel.xhtml.handler.TagHandler.beginElement(TagHandler.java:67)
	at org.xwiki.rendering.wikimodel.xhtml.impl.TagContext.beginElement(TagContext.java:74)
	at org.xwiki.rendering.wikimodel.xhtml.impl.TagStack.beginElement(TagStack.java:85)
	at org.xwiki.rendering.wikimodel.xhtml.impl.XhtmlHandler.startElement(XhtmlHandler.java:224)
	at org.xml.sax.helpers.XMLFilterImpl.startElement(XMLFilterImpl.java:551)
	at org.xwiki.rendering.wikimodel.xhtml.filter.XHTMLWhitespaceXMLFilter.startElement(XHTMLWhitespaceXMLFilter.java:168)
	at org.xml.sax.helpers.XMLFilterImpl.startElement(XMLFilterImpl.java:551)
	at org.xwiki.rendering.wikimodel.xhtml.filter.AccumulationXMLFilter.startElement(AccumulationXMLFilter.java:74)
	at org.xml.sax.helpers.XMLFilterImpl.startElement(XMLFilterImpl.java:551)
	at org.xwiki.rendering.wikimodel.xhtml.filter.DTDXMLFilter.startElement(DTDXMLFilter.java:73)
	at org.apache.xerces.parsers.AbstractSAXParser.startElement(Unknown Source)
	at org.apache.xerces.impl.XMLNSDocumentScannerImpl.scanStartElement(Unknown Source)
	at org.apache.xerces.impl.XMLDocumentFragmentScannerImpl$FragmentContentDispatcher.dispatch(Unknown Source)
	at org.apache.xerces.impl.XMLDocumentFragmentScannerImpl.scanDocument(Unknown Source)
	at org.apache.xerces.parsers.XML11NonValidatingConfiguration.parse(Unknown Source)
	at org.apache.xerces.parsers.XML11NonValidatingConfiguration.parse(Unknown Source)
	at org.apache.xerces.parsers.XMLParser.parse(Unknown Source)
	at org.apache.xerces.parsers.AbstractSAXParser.parse(Unknown Source)
	at org.xml.sax.helpers.XMLFilterImpl.parse(XMLFilterImpl.java:357)
	at org.xwiki.rendering.wikimodel.xhtml.filter.DefaultXMLFilter.parse(DefaultXMLFilter.java:58)
	at org.xml.sax.helpers.XMLFilterImpl.parse(XMLFilterImpl.java:357)
	at org.xwiki.rendering.wikimodel.xhtml.filter.DefaultXMLFilter.parse(DefaultXMLFilter.java:58)
	at org.xml.sax.helpers.XMLFilterImpl.parse(XMLFilterImpl.java:357)
	at org.xwiki.rendering.wikimodel.xhtml.filter.DefaultXMLFilter.parse(DefaultXMLFilter.java:58)
	at org.xwiki.rendering.wikimodel.xhtml.XhtmlParser.parse(XhtmlParser.java:132)
	... 36 more