AbstractMethodError: org.emergent.bzr4j.intellij.BzrFileRevision.loadContent()

[Evgeny Goldin]

When comparing history content of a file (see screenshot attached) I get:

org.emergent.bzr4j.intellij.BzrFileRevision.loadContent()[B: org.emergent.bzr4j.intellij.BzrFileRevision.loadContent()[B
java.lang.AbstractMethodError: org.emergent.bzr4j.intellij.BzrFileRevision.loadContent()[B
 at com.intellij.openapi.vcs.history.FileHistoryPanelImpl$TreeNodeOnVcsRevision.loadContent(FileHistoryPanelImpl.java:1330)
 at com.intellij.openapi.vcs.history.VcsHistoryUtil.loadRevisionContent(VcsHistoryUtil.java:145)
 at com.intellij.openapi.vcs.history.VcsHistoryUtil.showDiff(VcsHistoryUtil.java:81)
 at com.intellij.openapi.vcs.history.FileHistoryPanelImpl$13.run(FileHistoryPanelImpl.java:641)
 at com.intellij.openapi.progress.impl.ProgressManagerImpl$TaskRunnable.run(ProgressManagerImpl.java:457)
 at com.intellij.openapi.progress.impl.ProgressManagerImpl$2.run(ProgressManagerImpl.java:178)
 at com.intellij.openapi.progress.impl.ProgressManagerImpl.executeProcessUnderProgress(ProgressManagerImpl.java:206)
 at com.intellij.openapi.progress.impl.ProgressManagerImpl.runProcess(ProgressManagerImpl.java:169)
 at com.intellij.openapi.progress.impl.ProgressManagerImpl$7.run(ProgressManagerImpl.java:366)
 at com.intellij.openapi.application.impl.ApplicationImpl$6.run(ApplicationImpl.java:422)
 at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:441)
 at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)
 at java.util.concurrent.FutureTask.run(FutureTask.java:138)
 at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
 at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
 at java.lang.Thread.run(Thread.java:680)
 at com.intellij.openapi.application.impl.ApplicationImpl$1$1.run(ApplicationImpl.java:137)

Plugin version 2.6.1, IDEA Ultimate 11.0.1 (111.167)