Syntax checking in in General class axioms view broken

[RalphBln]

Starting to type in the GCA view results in an exception (see below).

Syntax checking and highlighting remains functional after the exception but autocompletion stops working.

[AWT-EventQueue-0] ERROR ExpressionEditor    An error occurred whilst checking an expression. Expression:  
org.semanticweb.owlapi.manchestersyntax.renderer.ParserException: Encountered |EOF| at line 1 column 2. Expected one of:
Class name
Object property name
Data property name
inv
Functional
inverse
InverseFunctional
(
Asymmetric
Transitive
Irreflexive
{
Symmetric
Reflexive

at org.semanticweb.owlapi.manchestersyntax.parser.ManchesterOWLSyntaxParserImpl$ExceptionBuilder.build(ManchesterOWLSyntaxParserImpl.java:2441) ~[owlapi-osgidistribution.jar:4.1.3.20151118-2017]
at org.semanticweb.owlapi.manchestersyntax.parser.ManchesterOWLSyntaxParserImpl.parseAxiom(ManchesterOWLSyntaxParserImpl.java:2582) ~[owlapi-osgidistribution.jar:4.1.3.20151118-2017]
at org.semanticweb.owlapi.manchestersyntax.parser.ManchesterOWLSyntaxParserImpl.parseClassAxiom(ManchesterOWLSyntaxParserImpl.java:2587) ~[owlapi-osgidistribution.jar:4.1.3.20151118-2017]
at org.protege.editor.owl.ui.clsdescriptioneditor.OWLClassAxiomChecker.createObject(OWLClassAxiomChecker.java:42) ~[protege-editor-owl.jar:na]
at org.protege.editor.owl.ui.clsdescriptioneditor.OWLClassAxiomChecker.check(OWLClassAxiomChecker.java:34) ~[protege-editor-owl.jar:na]
at org.protege.editor.owl.ui.clsdescriptioneditor.ExpressionEditor.checkExpression(ExpressionEditor.java:213) [protege-editor-owl.jar:na]
at org.protege.editor.owl.ui.clsdescriptioneditor.ExpressionEditor.handleTimer(ExpressionEditor.java:227) [protege-editor-owl.jar:na]
at org.protege.editor.owl.ui.clsdescriptioneditor.ExpressionEditor.access$100(ExpressionEditor.java:45) [protege-editor-owl.jar:na]
at org.protege.editor.owl.ui.clsdescriptioneditor.ExpressionEditor$2.actionPerformed(ExpressionEditor.java:113) [protege-editor-owl.jar:na]
at javax.swing.Timer.fireActionPerformed(Timer.java:313) [na:1.8.0_40]
at javax.swing.Timer$DoPostEvent.run(Timer.java:245) [na:1.8.0_40]
at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:311) [na:1.8.0_40]
at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:749) [na:1.8.0_40]
at java.awt.EventQueue.access$500(EventQueue.java:97) [na:1.8.0_40]
at java.awt.EventQueue$3.run(EventQueue.java:702) [na:1.8.0_40]
at java.awt.EventQueue$3.run(EventQueue.java:696) [na:1.8.0_40]
at java.security.AccessController.doPrivileged(Native Method) [na:1.8.0_40]
at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:75) [na:1.8.0_40]
at java.awt.EventQueue.dispatchEvent(EventQueue.java:719) [na:1.8.0_40]
at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:201) [na:1.8.0_40]
at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:116) [na:1.8.0_40]
at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:105) [na:1.8.0_40]
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:101) [na:1.8.0_40]
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:93) [na:1.8.0_40]
at java.awt.EventDispatchThread.run(EventDispatchThread.java:82) [na:1.8.0_40]