When uploading logo file, it didn't propagate to member nodes.
Steps to reproduce.
1. upload logo file (png) to primary node
2. but, logo is broken in secondary node even though we could see successful message like below in primary node and secondary node
2018-03-14 23:12:03,891 [Thread-6] [INFO ] (o.a.a.h.p.HaPropagationServiceImpl:554) - Propogation of artifactory.ui.logo was succesfull
2018-03-14 23:12:03,876 [http-nio-8081-exec-5] [INFO ] (o.j.c.w.ConfigurationManagerImpl:319) - [Node ID: secondary] detected remote create for config 'artifactory.ui.logo'
Note that original file size was changed as well in secondary node.