cvs plugin broken - not possible to add new projects

The plugin crashes when trying to save a new project or edit an existing one (with a configured CVS repository).

The problem seems to be the Exclude Regions setting, which does not show an input field and hence is null in the constructor. I will attach a screenshot of the settings dialog. The stack trace is this:

java.lang.NullPointerException at hudson.scm.CvsRepository.<init>(CvsRepository.java:87) at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62) at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) at java.lang.reflect.Constructor.newInstance(Constructor.java:423) at org.kohsuke.stapler.RequestImpl.invokeConstructor(RequestImpl.java:529) at org.kohsuke.stapler.RequestImpl.instantiate(RequestImpl.java:784) at org.kohsuke.stapler.RequestImpl.access$200(RequestImpl.java:83) at org.kohsuke.stapler.RequestImpl$TypePair.convertJSON(RequestImpl.java:678) at org.kohsuke.stapler.RequestImpl$TypePair.convertJSON(RequestImpl.java:717) at org.kohsuke.stapler.RequestImpl.bindJSON(RequestImpl.java:478) at org.kohsuke.stapler.RequestImpl.instantiate(RequestImpl.java:778) at org.kohsuke.stapler.RequestImpl.access$200(RequestImpl.java:83) at org.kohsuke.stapler.RequestImpl$TypePair.convertJSON(RequestImpl.java:678) at org.kohsuke.stapler.RequestImpl.bindJSON(RequestImpl.java:478) at org.kohsuke.stapler.RequestImpl.bindJSON(RequestImpl.java:474) at hudson.scm.CVSSCM$DescriptorImpl.newInstance(CVSSCM.java:465) at hudson.scm.CVSSCM$DescriptorImpl.newInstance(CVSSCM.java:407) at hudson.DescriptorExtensionList.newInstanceFromRadioList(DescriptorExtensionList.java:142) at hudson.scm.SCMS.parseSCM(SCMS.java:59) at hudson.model.AbstractProject.submit(AbstractProject.java:1802) at hudson.model.Project.submit(Project.java:225) at hudson.model.Job.doConfigSubmit(Job.java:1350) at hudson.model.AbstractProject.doConfigSubmit(AbstractProject.java:772) at java.lang.invoke.MethodHandle.invokeWithArguments(MethodHandle.java:627) at org.kohsuke.stapler.Function$MethodFunction.invoke(Function.java:343) at org.kohsuke.stapler.interceptor.RequirePOST$Processor.invoke(RequirePOST.java:77) at org.kohsuke.stapler.PreInvokeInterceptedFunction.invoke(PreInvokeInterceptedFunction.java:26) at org.kohsuke.stapler.Function.bindAndInvoke(Function.java:184) at org.kohsuke.stapler.Function.bindAndInvokeAndServeResponse(Function.java:117) at org.kohsuke.stapler.MetaClass$1.doDispatch(MetaClass.java:130) at org.kohsuke.stapler.NameBasedDispatcher.dispatch(NameBasedDispatcher.java:58) at org.kohsuke.stapler.Stapler.tryInvoke(Stapler.java:739)