fix an issue on model
fix an issue on model

if JenkinsRun::getJenkinsGroupRun is used it will probably load the JenkinsGroupRun and store the JenkinsRun has the only in the JenkinsGroupRun
and later, when the GroupRun is used, the collection of run is initiliazed but uncomplete and it'll display a GroupRun with this only only Run

jenkins-khan/Jenkins-Khan,jenkins-khan/Jenkins-Khan,jenkins-khan/Jenkins-Khan