Auto-complete in Property Expression Editor should not throw ParseException

[rsgoncalves]

The exception is thrown upon triggering auto-completing with Ctrl+Space in: Entities Tab > Object property hierarchy, and then in the 'Disjoint With +' > Property Expression Editor dialog.

Level:       ERROR
Time:        1466793628749
Message:     An error occurred whilst checking an expression. Expression: has
org.semanticweb.owlapi.manchestersyntax.renderer.ParserException
StackTrace:  
    org.semanticweb.owlapi.manchestersyntax.parser.ManchesterOWLSyntaxParserImpl$ExceptionBuilder.build(ManchesterOWLSyntaxParserImpl.java:2441)
    org.semanticweb.owlapi.manchestersyntax.parser.ManchesterOWLSyntaxParserImpl.parseObjectPropertyExpression(ManchesterOWLSyntaxParserImpl.java:547)
    org.semanticweb.owlapi.manchestersyntax.parser.ManchesterOWLSyntaxParserImpl.parseObjectPropertyList(ManchesterOWLSyntaxParserImpl.java:1951)
    org.protege.editor.owl.ui.clsdescriptioneditor.OWLObjectPropertySetChecker.createObject(OWLObjectPropertySetChecker.java:40)
    org.protege.editor.owl.ui.clsdescriptioneditor.OWLObjectPropertySetChecker.check(OWLObjectPropertySetChecker.java:32)
    org.protege.editor.owl.ui.clsdescriptioneditor.ExpressionEditor.checkExpression(ExpressionEditor.java:211)
    org.protege.editor.owl.ui.clsdescriptioneditor.ExpressionEditor.handleTimer(ExpressionEditor.java:225)
    org.protege.editor.owl.ui.clsdescriptioneditor.ExpressionEditor.lambda$new$60(ExpressionEditor.java:112)
    org.protege.editor.owl.ui.clsdescriptioneditor.ExpressionEditor$$Lambda$156/561018673.actionPerformed(Unknown Source)
    javax.swing.Timer.fireActionPerformed(Timer.java:313)
    javax.swing.Timer$DoPostEvent.run(Timer.java:245)
    java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:311)
    java.awt.EventQueue.dispatchEventImpl(EventQueue.java:749)
    java.awt.EventQueue.access$500(EventQueue.java:97)
    java.awt.EventQueue$3.run(EventQueue.java:702)
    java.awt.EventQueue$3.run(EventQueue.java:696)
    java.security.AccessController.doPrivileged(Native Method)
    java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:75)
    java.awt.EventQueue.dispatchEvent(EventQueue.java:719)
    java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:201)
    java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:116)
    java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:105)
    java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:101)
    java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:93)
    java.awt.EventDispatchThread.run(EventDispatchThread.java:82)