• fix: #2628 removeAll() does not trigger Angular's ngOnDestroy
• fix: #2503 Drag and drop a widget on top of a locked widget - Thank you JakubEleniuk
• fix: #2584 wrong sort order during 1 column resize - Thank you JakubEleniuk again.
• fix: #2639 load() with mix of new item without coordinates
• fix: #2633 Drop into full grid causes crash
• fix: #2559 changed angular demos (support 1 column)
• fix: #2453 recreated grid trash issue