diff --git a/_server/editor.js b/_server/editor.js
index 6a125e2e..89049bbd 100644
--- a/_server/editor.js
+++ b/_server/editor.js
@@ -1009,7 +1009,6 @@ editor.prototype.listen = function () {
         editor.updateMap();
         fields.forEach(function(v){
             editor.currentFloorData[v][now.x+','+now.y]=editor.currentFloorData[v][last.x+','+last.y]
-            if (!core.isset(editor.currentFloorData[v][now.x+','+now.y])) delete editor.currentFloorData[v][now.x+','+now.y];
         })
         editor.file.saveFloorFile(function (err) {
             if (err) {
@@ -1054,10 +1053,8 @@ editor.prototype.listen = function () {
 
         fields.forEach(function(v){
             var temp_atsfcytaf=editor.currentFloorData[v][now.x+','+now.y];
-            if (!core.isset(editor.currentFloorData[v][last.x+','+last.y])) delete editor.currentFloorData[v][now.x+','+now.y];
-            else editor.currentFloorData[v][now.x+','+now.y]=editor.currentFloorData[v][last.x+','+last.y];
-            if (!core.isset(temp_atsfcytaf)) delete editor.currentFloorData[v][last.x+','+last.y];
-            else editor.currentFloorData[v][last.x+','+last.y]=temp_atsfcytaf
+            editor.currentFloorData[v][now.x+','+now.y]=editor.currentFloorData[v][last.x+','+last.y];
+            editor.currentFloorData[v][last.x+','+last.y]=temp_atsfcytaf;
         })
         editor.file.saveFloorFile(function (err) {
             if (err) {