Improve merge on update

server/src/database/DB.js

@@ -1,7 +1,7 @@
 import mongoose from "mongoose"
 import mongodb from "mongodb"
 import Grid from "gridfs-stream"
-import merge from "mongoose-merge-plugin"
+import mergePlugin from "mongoose-doc-merge"
 import autobind from "autobind-decorator"
 import * as Schemas from "./schemas"
 import util from "util"
@@ -9,7 +9,7 @@ import util from "util"
 @autobind
 export class DB {
   constructor() {
-    mongoose.plugin(merge)
+    mongoose.plugin(mergePlugin)
   }
 
   async connect(mongoUri, isProduction) {