Conversion from XWiki 1.0 to 2.0 syntax fails when the line ends with < followed by a word

1<2

java.lang.ArrayIndexOutOfBoundsException: 3
    at org.xwiki.rendering.internal.parser.xwiki10.HTMLFilter.getBeginElement(HTMLFilter.java:475)
    at org.xwiki.rendering.internal.parser.xwiki10.HTMLFilter.getElement(HTMLFilter.java:347)
    at org.xwiki.rendering.internal.parser.xwiki10.HTMLFilter.getHTMLBlock(HTMLFilter.java:311)
    at org.xwiki.rendering.internal.parser.xwiki10.HTMLFilter.filter(HTMLFilter.java:140)
    at org.xwiki.rendering.internal.parser.xwiki10.XWikiParser.xwiki10To20(XWikiParser.java:135)
    at org.xwiki.rendering.internal.parser.xwiki10.XWikiParser.parse(XWikiParser.java:110)
    at com.xpn.xwiki.doc.XWikiDocument.parseContent(XWikiDocument.java:7742)
    at com.xpn.xwiki.doc.XWikiDocument.performSyntaxConversion(XWikiDocument.java:7664)
    at com.xpn.xwiki.doc.XWikiDocument.convertSyntax(XWikiDocument.java:7523)
    at com.xpn.xwiki.doc.XWikiDocument.convertSyntax(XWikiDocument.java:7507)
    at com.xpn.xwiki.api.Document.convertSyntax(Document.java:2487)
    ...