When a build is cancelled and another is started the buildlogger doesn't seem to detect this and seems to continue monitoring the previous build.
We should investigate porting it to be a status plugin like MailNotifier and the IRCStatusBot. http://docs.buildbot.net/0.8.8/manual/customization.html#writing-new-status-plugins
Implementation of a wikilog status plugin has been completed, it needs testing on a setup which closer resembles the production cluster before final deployment.
wikilog plugin implemented: http://git.yoctoproject.org/clean/cgit.cgi/yocto-autobuilder/commit/?id=0861be568fdade5405a9435a1f0fbf7145c81df1