Image link without file reference is crashing the import

[[Image:|centre]]

An Entity Reference name cannot be null or empty
class org.xwiki.filter.FilterException: Failed to parse XML
    at org.xwiki.filter.mediawiki.xml.internal.input.MediaWikiInputFilterStream.read(MediaWikiInputFilterStream.java:257)
    at org.xwiki.filter.mediawiki.xml.internal.input.MediaWikiInputFilterStream.read(MediaWikiInputFilterStream.java:81)
    at org.xwiki.filter.input.AbstractBeanInputFilterStream.read(AbstractBeanInputFilterStream.java:79)
    at org.xwiki.filter.internal.job.FilterStreamConverterJob.runInternal(FilterStreamConverterJob.java:100)
    at org.xwiki.job.AbstractJob.runInContext(AbstractJob.java:206)
    at org.xwiki.job.AbstractJob.run(AbstractJob.java:189)
    at org.xwiki.filter.script.internal.ScriptFilterStreamConverterJob.run(ScriptFilterStreamConverterJob.java:75)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
    at java.lang.Thread.run(Thread.java:745)
Caused by: class org.xwiki.filter.FilterException: Failed to convert content page
    at org.xwiki.filter.mediawiki.xml.internal.input.MediaWikiInputFilterStream.convertToXWiki21(MediaWikiInputFilterStream.java:573)
    at org.xwiki.filter.mediawiki.xml.internal.input.MediaWikiInputFilterStream.readPageRevision(MediaWikiInputFilterStream.java:507)
    at org.xwiki.filter.mediawiki.xml.internal.input.MediaWikiInputFilterStream.readPage(MediaWikiInputFilterStream.java:378)
    at org.xwiki.filter.mediawiki.xml.internal.input.MediaWikiInputFilterStream.readMediaWiki(MediaWikiInputFilterStream.java:298)
    at org.xwiki.filter.mediawiki.xml.internal.input.MediaWikiInputFilterStream.read(MediaWikiInputFilterStream.java:286)
    at org.xwiki.filter.mediawiki.xml.internal.input.MediaWikiInputFilterStream.read(MediaWikiInputFilterStream.java:255)
    at org.xwiki.filter.mediawiki.xml.internal.input.MediaWikiInputFilterStream.read(MediaWikiInputFilterStream.java:81)
    at org.xwiki.filter.input.AbstractBeanInputFilterStream.read(AbstractBeanInputFilterStream.java:79)
    at org.xwiki.filter.internal.job.FilterStreamConverterJob.runInternal(FilterStreamConverterJob.java:100)
    at org.xwiki.job.AbstractJob.runInContext(AbstractJob.java:206)
    at org.xwiki.job.AbstractJob.run(AbstractJob.java:189)
    at org.xwiki.filter.script.internal.ScriptFilterStreamConverterJob.run(ScriptFilterStreamConverterJob.java:75)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
    at java.lang.Thread.run(Thread.java:745)
Caused by: class java.lang.IllegalArgumentException: An Entity Reference name cannot be null or empty
    at org.xwiki.model.reference.EntityReference.setName(EntityReference.java:187)
    at org.xwiki.model.reference.EntityReference.<init>(EntityReference.java:155)
    at org.xwiki.filter.mediawiki.xml.internal.input.MediaWikiInputFilterStream.toFileEntityReference(MediaWikiInputFilterStream.java:233)
    at org.xwiki.filter.mediawiki.xml.internal.input.MediaWikiContextConverterListener.refactor(MediaWikiContextConverterListener.java:175)
    at org.xwiki.filter.mediawiki.xml.internal.input.MediaWikiContextConverterListener.beginLink(MediaWikiContextConverterListener.java:200)
    at org.xwiki.rendering.listener.WrappingListener.beginLink(WrappingListener.java:203)
    at org.xwiki.contrib.mediawiki.syntax.internal.parser.converter.LinkEventGenerator.begin(LinkEventGenerator.java:33)
    at org.xwiki.contrib.mediawiki.syntax.internal.parser.converter.AbstractEventGenerator.traverse(AbstractEventGenerator.java:87)
    at org.xwiki.contrib.mediawiki.syntax.internal.parser.converter.EventConverter.traverse(EventConverter.java:416)
    at org.xwiki.contrib.mediawiki.syntax.internal.parser.converter.EventConverter.traverse(EventConverter.java:384)
    at org.xwiki.contrib.mediawiki.syntax.internal.parser.converter.EventConverter.traverse(EventConverter.java:362)
    at org.xwiki.contrib.mediawiki.syntax.internal.parser.converter.EventConverter.traverse(EventConverter.java:351)
    at org.xwiki.contrib.mediawiki.syntax.internal.parser.converter.AbstractEventGenerator.traverse(AbstractEventGenerator.java:90)
    at org.xwiki.contrib.mediawiki.syntax.internal.parser.converter.ParagraphEventGenerator.traverse(ParagraphEventGenerator.java:47)
    at org.xwiki.contrib.mediawiki.syntax.internal.parser.converter.EventConverter.traverse(EventConverter.java:416)
    at org.xwiki.contrib.mediawiki.syntax.internal.parser.converter.EventConverter.traverse(EventConverter.java:384)
    at org.xwiki.contrib.mediawiki.syntax.internal.parser.converter.EventConverter.traverse(EventConverter.java:362)
    at org.xwiki.contrib.mediawiki.syntax.internal.parser.converter.EventConverter.traverse(EventConverter.java:351)
    at org.xwiki.contrib.mediawiki.syntax.internal.parser.converter.EventConverter.nodesToText(EventConverter.java:227)
    at info.bliki.wiki.model.AbstractWikiModel.render(AbstractWikiModel.java:1244)
    at org.xwiki.contrib.mediawiki.syntax.internal.input.MediaWikiSyntaxInputFilterStream.read(MediaWikiSyntaxInputFilterStream.java:103)
    at org.xwiki.contrib.mediawiki.syntax.internal.input.MediaWikiSyntaxInputFilterStream.read(MediaWikiSyntaxInputFilterStream.java:46)
    at org.xwiki.filter.input.AbstractBeanInputFilterStream.read(AbstractBeanInputFilterStream.java:79)
    at org.xwiki.filter.mediawiki.xml.internal.input.MediaWikiInputFilterStream.convertToXWiki21(MediaWikiInputFilterStream.java:571)
    at org.xwiki.filter.mediawiki.xml.internal.input.MediaWikiInputFilterStream.readPageRevision(MediaWikiInputFilterStream.java:507)
    at org.xwiki.filter.mediawiki.xml.internal.input.MediaWikiInputFilterStream.readPage(MediaWikiInputFilterStream.java:378)
    at org.xwiki.filter.mediawiki.xml.internal.input.MediaWikiInputFilterStream.readMediaWiki(MediaWikiInputFilterStream.java:298)
    at org.xwiki.filter.mediawiki.xml.internal.input.MediaWikiInputFilterStream.read(MediaWikiInputFilterStream.java:286)
    at org.xwiki.filter.mediawiki.xml.internal.input.MediaWikiInputFilterStream.read(MediaWikiInputFilterStream.java:255)
    at org.xwiki.filter.mediawiki.xml.internal.input.MediaWikiInputFilterStream.read(MediaWikiInputFilterStream.java:81)
    at org.xwiki.filter.input.AbstractBeanInputFilterStream.read(AbstractBeanInputFilterStream.java:79)
    at org.xwiki.filter.internal.job.FilterStreamConverterJob.runInternal(FilterStreamConverterJob.java:100)
    at org.xwiki.job.AbstractJob.runInContext(AbstractJob.java:206)
    at org.xwiki.job.AbstractJob.run(AbstractJob.java:189)
    at org.xwiki.filter.script.internal.ScriptFilterStreamConverterJob.run(ScriptFilterStreamConverterJob.java:75)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
    at java.lang.Thread.run(Thread.java:745)