Plugin breaks with latest Intellij version

[samudurand]

I just updated to the latest Intellij Ultimate (2021.1) this morning and the plugin immediately broke on opening an nginx.conf file

java.lang.IllegalArgumentException: Invalid range specified: (612, 611); 
	at com.intellij.openapi.util.TextRange.assertProperRange(TextRange.java:222)
	at com.intellij.openapi.util.TextRange.assertProperRange(TextRange.java:217)
	at com.intellij.openapi.util.TextRange.assertProperRange(TextRange.java:213)
	at com.intellij.openapi.util.TextRange.<init>(TextRange.java:41)
	at com.intellij.openapi.util.TextRange.<init>(TextRange.java:30)
	at dev.meanmail.folding.NginxFoldingBuilder.buildFoldRegions(NginxFoldingBuilder.kt:29)
	at com.intellij.lang.folding.LanguageFolding.buildFoldingDescriptorsNoPlaceholderCaching(LanguageFolding.java:92)
	at com.intellij.lang.folding.LanguageFolding.buildFoldingDescriptors(LanguageFolding.java:75)
	at com.intellij.codeInsight.folding.impl.FoldingUpdate.getFoldingsFor(FoldingUpdate.java:267)
	at com.intellij.codeInsight.folding.impl.FoldingUpdate.getFoldingsFor(FoldingUpdate.java:233)
	at com.intellij.codeInsight.folding.impl.FoldingUpdate.getUpdateResult(FoldingUpdate.java:87)
	at com.intellij.codeInsight.folding.impl.FoldingUpdate.lambda$updateFoldRegions$0(FoldingUpdate.java:76)
	at com.intellij.psi.impl.PsiCachedValueImpl.doCompute(PsiCachedValueImpl.java:54)
	at com.intellij.util.CachedValueBase.lambda$getValueWithLock$3(CachedValueBase.java:227)
	at com.intellij.util.CachedValueBase.computeData(CachedValueBase.java:42)
	at com.intellij.util.CachedValueBase.lambda$getValueWithLock$4(CachedValueBase.java:227)
	at com.intellij.openapi.util.RecursionManager$1.computePreventingRecursion(RecursionManager.java:111)
	at com.intellij.openapi.util.RecursionGuard.doPreventingRecursion(RecursionGuard.java:43)
	at com.intellij.openapi.util.RecursionManager.doPreventingRecursion(RecursionManager.java:68)
	at com.intellij.util.CachedValueBase.getValueWithLock(CachedValueBase.java:228)
	at com.intellij.psi.impl.PsiCachedValueImpl.getValue(PsiCachedValueImpl.java:43)
	at com.intellij.util.CachedValuesManagerImpl.getCachedValue(CachedValuesManagerImpl.java:72)
	at com.intellij.codeInsight.folding.impl.FoldingUpdate.updateFoldRegions(FoldingUpdate.java:73)
	at com.intellij.codeInsight.folding.impl.CodeFoldingManagerImpl.updateFoldRegions(CodeFoldingManagerImpl.java:222)
	at com.intellij.codeInsight.folding.impl.CodeFoldingManagerImpl.updateFoldRegionsAsync(CodeFoldingManagerImpl.java:208)
	at com.intellij.codeInsight.daemon.impl.CodeFoldingPass.doCollectInformation(CodeFoldingPass.java:42)
	at com.intellij.codeHighlighting.TextEditorHighlightingPass.collectInformation(TextEditorHighlightingPass.java:56)
	at com.intellij.codeInsight.daemon.impl.PassExecutorService$ScheduledPass.lambda$doRun$1(PassExecutorService.java:400)
	at com.intellij.openapi.application.impl.ApplicationImpl.tryRunReadAction(ApplicationImpl.java:1096)
	at com.intellij.codeInsight.daemon.impl.PassExecutorService$ScheduledPass.lambda$doRun$2(PassExecutorService.java:393)
	at com.intellij.openapi.progress.impl.CoreProgressManager.registerIndicatorAndRun(CoreProgressManager.java:688)
	at com.intellij.openapi.progress.impl.CoreProgressManager.executeProcessUnderProgress(CoreProgressManager.java:634)
	at com.intellij.openapi.progress.impl.ProgressManagerImpl.executeProcessUnderProgress(ProgressManagerImpl.java:64)
	at com.intellij.codeInsight.daemon.impl.PassExecutorService$ScheduledPass.doRun(PassExecutorService.java:392)
	at com.intellij.codeInsight.daemon.impl.PassExecutorService$ScheduledPass.lambda$run$0(PassExecutorService.java:368)
	at com.intellij.openapi.application.impl.ReadMostlyRWLock.executeByImpatientReader(ReadMostlyRWLock.java:167)
	at com.intellij.openapi.application.impl.ApplicationImpl.executeByImpatientReader(ApplicationImpl.java:178)
	at com.intellij.codeInsight.daemon.impl.PassExecutorService$ScheduledPass.run(PassExecutorService.java:366)
	at com.intellij.concurrency.JobLauncherImpl$VoidForkJoinTask$1.exec(JobLauncherImpl.java:188)
	at java.base/java.util.concurrent.ForkJoinTask.doExec(ForkJoinTask.java:290)
	at java.base/java.util.concurrent.ForkJoinPool$WorkQueue.topLevelExec(ForkJoinPool.java:1020)
	at java.base/java.util.concurrent.ForkJoinPool.scan(ForkJoinPool.java:1656)
	at java.base/java.util.concurrent.ForkJoinPool.runWorker(ForkJoinPool.java:1594)
	at java.base/java.util.concurrent.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:183)