NPE in BlogControllerImpl#eventOccurred()

Android version: 6.0
Phone model: Redacted by user
Briar version: 1.2.4 (commit hash redacted, but package name indicates a release build)

Stacktrace:

java.lang.NullPointerException: Attempt to invoke interface method 'void org.briarproject.briar.android.blog.BaseController$BlogListener.onBlogPostAdded(org.briarproject.briar.api.blog.BlogPostHeader, boolean)' on a null object reference
        at org.briarproject.briar.android.blog.BlogControllerImpl.eventOccurred(BlogControllerImpl.java:108)
        at org.briarproject.bramble.event.EventBusImpl.lambda$broadcast$0$EventBusImpl(EventBusImpl.java:42)
        at org.briarproject.bramble.event.-$$Lambda$EventBusImpl$bRn946wCXST7O6nsMZt_9tnkiuk.run(lambda)
        at android.os.Handler.handleCallback(Handler.java:815)
        at android.os.Handler.dispatchMessage(Handler.java:104)
        at android.os.Looper.loop(Looper.java:207)
        at android.app.ActivityThread.main(ActivityThread.java:5778)
        at java.lang.reflect.Method.invoke(Native Method)
        at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:801)
        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:691)