fix(col): Fix failing tests #6004

Author: Vasil Mihalkov

projects/igniteui-angular/src/lib/grids/column.component.ts

@@ -296,8 +296,8 @@ export class IgxColumnComponent implements AfterContentInit, OnDestroy {
      * ```
      * @memberof IgxColumnComponent
      */
-    @notifyChanges()
     @WatchColumnChanges()
+    @notifyChanges()
     @Input()
     public movable = false;
     /**

projects/igniteui-angular/src/lib/grids/watch-changes.ts

@@ -44,8 +44,8 @@ export function WatchColumnChanges(): PropertyDecorator {
         propDesc.set = function (this: any, val: any) {
             const init = this._init;
             const oldValue = this[key];
+            originalSetter.call(this, val);
             if (val !== oldValue || (typeof val === 'object' && val === oldValue)) {
-                originalSetter.call(this, val);
                 if (this.rowIslandAPI.rowIsland) {
                     this.rowIslandAPI.rowIsland.updateColumnList();
                }