post.patch

--- "app/post.go"   2018-02-20 18:15:10.219247729 -0600
+++ app/post.go 2018-02-20 18:15:03.855248412 -0600
@@ -397,6 +397,12 @@
            })
        }

+       for _, fileId := range post.FileIds {
+           if result := <-a.Srv.Store.FileInfo().AttachToPost(fileId, post.Id); result.Err != nil {
+               l4g.Error(utils.T("api.post.create_post.attach_files.error"), post.Id, post.FileIds, post.UserId, result.Err)
+           }
+       }
+
        a.sendUpdatedPostEvent(rpost)

        a.InvalidateCacheForChannelPosts(rpost.ChannelId)