Fails to parse a constraint connected with OR with a bind variable on right side in executable-model

$p : Person(name == "Mario" || $a : age > 20)

com.github.javaparser.ParseProblemException: Unknown error
Problem stacktrace : 
  org.drools.mvel.parser.utils.AstUtils.parseBindingAfterAnd(AstUtils.java:127)
  org.drools.mvel.parser.GeneratedMvelParser.DrlxExpression(GeneratedMvelParser.java:8593)
  org.drools.mvel.parser.DrlxParser.lambda$1(DrlxParser.java:46)
  org.drools.mvel.parser.MvelParser.parse(MvelParser.java:146)
  org.drools.mvel.parser.DrlxParser.simplifiedParse(DrlxParser.java:60)
  org.drools.mvel.parser.DrlxParser.parseExpression(DrlxParser.java:56)
  org.drools.modelcompiler.builder.generator.DrlxParseUtil.parseExpression(DrlxParseUtil.java:675)
  org.drools.modelcompiler.builder.generator.drlxparse.ConstraintParser.drlxParse(ConstraintParser.java:142)
  org.drools.modelcompiler.builder.generator.visitor.pattern.PatternDSL.findAllConstraint(PatternDSL.java:147)
  org.drools.modelcompiler.builder.generator.visitor.pattern.PatternDSL.buildPattern(PatternDSL.java:306)
  org.drools.modelcompiler.builder.generator.visitor.ModelGeneratorVisitor.visit(ModelGeneratorVisitor.java:131)
  org.drools.compiler.lang.descr.PatternDescr.accept(PatternDescr.java:303)
  org.drools.modelcompiler.builder.generator.visitor.AndVisitor.visit(AndVisitor.java:51)
  org.drools.modelcompiler.builder.generator.visitor.ModelGeneratorVisitor.visit(ModelGeneratorVisitor.java:69)
  org.drools.modelcompiler.builder.generator.ModelGenerator.processRule(ModelGenerator.java:200)
  org.drools.modelcompiler.builder.generator.ModelGenerator.processRuleDescr(ModelGenerator.java:176)
  org.drools.modelcompiler.builder.generator.ModelGenerator.generateModel(ModelGenerator.java:165)
  org.drools.modelcompiler.builder.ModelBuilderImpl.compileKnowledgePackages(ModelBuilderImpl.java:287)
  org.drools.modelcompiler.builder.ModelBuilderImpl.buildRules(ModelBuilderImpl.java:222)
  org.drools.modelcompiler.builder.ModelBuilderImpl.doSecondBuildStep(ModelBuilderImpl.java:119)
  org.drools.compiler.builder.impl.CompositeKnowledgeBuilderImpl.build(CompositeKnowledgeBuilderImpl.java:115)
  org.drools.compiler.builder.impl.CompositeKnowledgeBuilderImpl.build(CompositeKnowledgeBuilderImpl.java:99)
  org.drools.compiler.kie.builder.impl.AbstractKieProject.buildKnowledgePackages(AbstractKieProject.java:270)
  org.drools.compiler.kie.builder.impl.AbstractKieProject.buildKnowledgePackages(AbstractKieProject.java:216)
  org.drools.compiler.kie.builder.impl.AbstractKieProject.verify(AbstractKieProject.java:80)
  org.drools.compiler.kie.builder.impl.KieBuilderImpl.buildKieProject(KieBuilderImpl.java:277)
  org.drools.compiler.kie.builder.impl.KieBuilderImpl.buildAll(KieBuilderImpl.java:245)
  org.drools.compiler.kie.builder.impl.KieBuilderImpl.buildAll(KieBuilderImpl.java:202)
  org.drools.modelcompiler.BaseModelTest.createKieBuilder(BaseModelTest.java:147)
  org.drools.modelcompiler.BaseModelTest.createKieBuilder(BaseModelTest.java:130)
  org.drools.modelcompiler.BaseModelTest.getKieContainer(BaseModelTest.java:119)
  org.drools.modelcompiler.BaseModelTest.getKieContainer(BaseModelTest.java:112)
  org.drools.modelcompiler.BaseModelTest.getKieSession(BaseModelTest.java:108)
  org.drools.modelcompiler.BaseModelTest.getKieSession(BaseModelTest.java:104)
  org.drools.modelcompiler.BindingTest.testBindingOnRightWithOr(BindingTest.java:308)

$p : Person($n : name == "Mario" || $a : age > 20)