NullPointerException when trying to view the changeset containing a file revision that has no branches

java.lang.NullPointerException
        at com.atlassian.fisheye.dvcs.DvcsFileHistory.getRevisions(DvcsFileHistory.java:163)
        at com.cenqua.fisheye.web.FisheyeFileHistoryExplorer.<init>(FisheyeFileHistoryExplorer.java:34)
        at com.cenqua.fisheye.web.ViewFileAction.loadHistory(ViewFileAction.java:258)
        at com.cenqua.fisheye.web.ViewFileAction.handleFileRequest(ViewFileAction.java:192)
        at com.cenqua.fisheye.web.ViewFileAction.handleRequest(ViewFileAction.java:143)
        at com.cenqua.fisheye.web.BaseAction.processRequest(BaseAction.java:247)
        at com.cenqua.fisheye.web.ActionDispatcherServlet.doIt(ActionDispatcherServlet.java:237)
        at com.cenqua.fisheye.web.ActionDispatcherServlet.doGet(ActionDispatcherServlet.java:68)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:707)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:820)
        at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:511)
        at org.mortbay.jetty.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1272)
        at com.atlassian.plugin.servlet.filter.IteratingFilterChain.doFilter(IteratingFilterChain.java:46)
        at com.atlassian.plugin.servlet.filter.DelegatingPluginFilter$1.doFilter(DelegatingPluginFilter.java:66)
        at com.atlassian.applinks.core.rest.context.ContextFilter.doFilter(ContextFilter.java:25)
        at com.atlassian.plugin.servlet.filter.DelegatingPluginFilter.doFilter(DelegatingPluginFilter.java:74)
        at com.atlassian.plugin.servlet.filter.IteratingFilterChain.doFilter(IteratingFilterChain.java:42)
        at com.atlassian.plugin.servlet.filter.ServletFilterModuleContainerFilter.doFilter(ServletFilterModuleContainerFilter.java:77)
        at com.atlassian.plugin.servlet.filter.ServletFilterModuleContainerFilter.doFilter(ServletFilterModuleContainerFilter.java:63)
        at org.mortbay.jetty.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1264)
        at com.atlassian.plugin.servlet.filter.IteratingFilterChain.doFilter(IteratingFilterChain.java:46)
        at com.atlassian.plugin.servlet.filter.ServletFilterModuleContainerFilter.doFilter(ServletFilterModuleContainerFilter.java:77)
        at com.atlassian.plugin.servlet.filter.ServletFilterModuleContainerFilter.doFilter(ServletFilterModuleContainerFilter.java:63)
        at org.mortbay.jetty.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1264)
        at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:83)
        at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:76)
        at org.mortbay.jetty.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1264)
        at com.atlassian.crucible.filters.CrucibleFilter.doFilter(CrucibleFilter.java:142)
        at org.mortbay.jetty.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1264)
        at com.cenqua.fisheye.web.filters.TotalityFilter.doFilter(TotalityFilter.java:263)
        at org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:236)
        at org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:167)
        at org.mortbay.jetty.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1264)
        at com.atlassian.security.auth.trustedapps.filter.TrustedApplicationsFilter.doFilter(TrustedApplicationsFilter.java:98)
        at org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:236)
        at org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:167)
        at org.mortbay.jetty.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1264)
        at com.atlassian.plugin.servlet.filter.IteratingFilterChain.doFilter(IteratingFilterChain.java:46)
        at com.atlassian.plugin.servlet.filter.DelegatingPluginFilter$1.doFilter(DelegatingPluginFilter.java:66)
        at com.atlassian.oauth.serviceprovider.internal.servlet.OAuthFilter.doFilter(OAuthFilter.java:71)
        at com.atlassian.plugin.servlet.filter.DelegatingPluginFilter.doFilter(DelegatingPluginFilter.java:74)
        at com.atlassian.plugin.servlet.filter.IteratingFilterChain.doFilter(IteratingFilterChain.java:42)
        at com.atlassian.plugin.servlet.filter.ServletFilterModuleContainerFilter.doFilter(ServletFilterModuleContainerFilter.java:77)
        at com.atlassian.plugin.servlet.filter.ServletFilterModuleContainerFilter.doFilter(ServletFilterModuleContainerFilter.java:63)
        at org.mortbay.jetty.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1264)
        at org.mortbay.servlet.UserAgentFilter.doFilter(UserAgentFilter.java:78)
        at org.mortbay.servlet.GzipFilter.doFilter(GzipFilter.java:131)
        at com.cenqua.fisheye.web.filters.CustomIncludableGzipFilter.doFilter(CustomIncludableGzipFilter.java:21)
        at org.mortbay.jetty.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1264)
        at com.cenqua.fisheye.web.filters.ProductInfoFilter.doFilter(ProductInfoFilter.java:36)
        at org.mortbay.jetty.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1264)
        at com.atlassian.plugin.servlet.filter.IteratingFilterChain.doFilter(IteratingFilterChain.java:46)
        at com.atlassian.plugin.servlet.filter.ServletFilterModuleContainerFilter.doFilter(ServletFilterModuleContainerFilter.java:77)
        at com.atlassian.plugin.servlet.filter.ServletFilterModuleContainerFilter.doFilter(ServletFilterModuleContainerFilter.java:63)
        at org.mortbay.jetty.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1264)
        at com.cenqua.fisheye.web.filters.UpfrontFilter.doFilter(UpfrontFilter.java:52)
        at org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:236)
        at org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:167)
        at org.mortbay.jetty.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1264)
        at com.atlassian.fecru.profiling.ProfilingServletFilter.doFilter(ProfilingServletFilter.java:73)