"AssertionError: Already disposed" with Demetra beta

Getting the following error a lot with the Clearcase plugin with Demetra beta (5569 onwards).
Intellij developers confirm that it's a plugin bug (http://www.intellij.net/forums/thread.jspa?threadID=240920&tstart=0)

"This is indeed a plugin error, not an IDEA bug - the plugin references the project after it has been disposed."

java.lang.AssertionError: Already disposed
at com.intellij.openapi.components.impl.ComponentManagerImpl.getComponent(ComponentManagerImpl.java:89)
at com.intellij.openapi.vcs.FileStatusManager.getInstance(FileStatusManager.java:30)
at org.intellij.openapi.OpenApiFacade.getFileStatusManager(OpenApiFacade.java:30)
at net.sourceforge.transparent.TransparentFileStatusProvider$1.propertyChanged(TransparentFileStatusProvider.java:39)
at sun.reflect.GeneratedMethodAccessor119.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:585)
at com.intellij.util.PendingEventDispatcher.a(PendingEventDispatcher.java:2)
at com.intellij.util.PendingEventDispatcher.a(PendingEventDispatcher.java:34)
at com.intellij.util.PendingEventDispatcher.access$100(PendingEventDispatcher.java:65)
at com.intellij.util.PendingEventDispatcher$1.invoke(PendingEventDispatcher.java:5)
at $Proxy1.propertyChanged(Unknown Source)
at com.intellij.openapi.vfs.VirtualFileSystem.firePropertyChanged(VirtualFileSystem.java:133)
at com.intellij.openapi.vfs.impl.local.LocalFileSystemImpl.firePropertyChanged(LocalFileSystemImpl.java:65)
at com.intellij.openapi.vfs.impl.local.VirtualFileImpl$11.run(VirtualFileImpl.java:4)
at com.intellij.openapi.vfs.impl.VirtualFileManagerImpl$2$1.run(VirtualFileManagerImpl.java:30)
at com.intellij.openapi.application.impl.ApplicationImpl.runWriteAction(ApplicationImpl.java:62)
at com.intellij.openapi.vfs.impl.VirtualFileManagerImpl$2.run(VirtualFileManagerImpl.java:2)
at com.intellij.openapi.application.impl.LaterInvocator$FlushQueue.run(LaterInvocator.java:24)
at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:209)
at java.awt.EventQueue.dispatchEvent(EventQueue.java:461)
at com.intellij.ide.IdeEventQueue.defaultDispatchEvent(IdeEventQueue.java:23)
at com.intellij.ide.IdeEventQueue.a(IdeEventQueue.java:40)
at com.intellij.ide.IdeEventQueue.dispatchEvent(IdeEventQueue.java:129)
at java.awt.EventDispatchThread.pumpOneEventForHierarchy(EventDispatchThread.java:242)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:163)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:157)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:149)
at java.awt.EventDispatchThread.run(EventDispatchThread.java:110)