убрал $.extend. Это место вообще не работает.

cell/view/WorksheetView.js

@@ -5357,31 +5357,35 @@
         }
     };
 
-    WorksheetView.prototype.prepareDepCells = function ( se ) {
-        var activeCell = this.activeRange, mc = this.model.getMergedByCell( activeCell.startRow, activeCell.startCol ), c1 = mc ? mc.c1 : activeCell.startCol, r1 = mc ? mc.r1 : activeCell.startRow, c = this._getVisibleCell( c1, r1 ), nodes = (se == c_oAscDrawDepOptions.Master) ? this.model.workbook.dependencyFormulas.getMasterNodes( this.model.getId(), c.getName() ) : this.model.workbook.dependencyFormulas.getSlaveNodes( this.model.getId(), c.getName() );
-
-        if ( !nodes ) {
+    WorksheetView.prototype.prepareDepCells = function(se) {
+        var activeCell = this.activeRange, mc = this.model.getMergedByCell(activeCell.startRow,
+          activeCell.startCol), c1 = mc ? mc.c1 : activeCell.startCol, r1 = mc ? mc.r1 :
+          activeCell.startRow, c = this._getVisibleCell(c1, r1), nodes = (se == c_oAscDrawDepOptions.Master) ?
+          this.model.workbook.dependencyFormulas.getMasterNodes(this.model.getId(), c.getName()) :
+          this.model.workbook.dependencyFormulas.getSlaveNodes(this.model.getId(), c.getName());
+
+        if (!nodes) {
             return;
         }
 
-        if ( !this.depDrawCells ) {
+        if (!this.depDrawCells) {
             this.depDrawCells = {};
         }
 
-        if ( se == c_oAscDrawDepOptions.Master ) {
+        if (se == c_oAscDrawDepOptions.Master) {
             c = c.getCells()[0];
-            var id = getVertexId( this.model.getId(), c.getName() );
+            var id = getVertexId(this.model.getId(), c.getName());
             this.depDrawCells[id] = {from: c, to: nodes};
-        }
-        else {
-            var to = {}, to1, id = getVertexId( this.model.getId(), c.getName() );
-            to[getVertexId( this.model.getId(), c.getName() )] = this.model.workbook.dependencyFormulas.getNode( this.model.getId(), c.getName() );
-            to1 = this.model.workbook.dependencyFormulas.getNode( this.model.getId(), c.getName() );
-            for ( var id2 in nodes ) {
-                if ( this.depDrawCells[id2] ) {
-                    $.extend( this.depDrawCells[id2].to, to )
-                }
-                else {
+        } else {
+            var to = {}, to1, id = getVertexId(this.model.getId(), c.getName());
+            to[getVertexId(this.model.getId(), c.getName())] =
+              this.model.workbook.dependencyFormulas.getNode(this.model.getId(), c.getName());
+            to1 = this.model.workbook.dependencyFormulas.getNode(this.model.getId(), c.getName());
+            for (var id2 in nodes) {
+                if (this.depDrawCells[id2]) {
+                    //$.extend(this.depDrawCells[id2].to, to);
+                    //ToDo убрал $.extend. Это место вообще не работает.
+                } else {
                     this.depDrawCells[id2] = {}
                     this.depDrawCells[id2].from = nodes[id2].returnCell()
                     this.depDrawCells[id2].to = {}
@@ -5390,7 +5394,6 @@
             }
         }
         this.drawDepCells();
-
     };
 
     WorksheetView.prototype.cleanDepCells = function () {