full grid maxRow fix

* fix #2449
* move, while still being under maxRow or at least not making it worse (case where widget was somehow added past our max)

Author: adumesny

doc/CHANGES.md

@@ -5,6 +5,7 @@ Change log
 <!-- DON'T EDIT THIS SECTION, INSTEAD RE-RUN doctoc TO UPDATE -->
 **Table of Contents**  *generated with [DocToc](http://doctoc.herokuapp.com/)*
 
+- [9.1.1-dev (TBD)](#911-dev-tbd)
 - [9.1.1 (2023-09-06)](#911-2023-09-06)
 - [9.1.0 (2023-09-04)](#910-2023-09-04)
 - [9.0.2 (2023-08-29)](#902-2023-08-29)
@@ -97,6 +98,9 @@ Change log
 
 <!-- END doctoc generated TOC please keep comment here to allow auto update -->
 
+## 9.1.1-dev (TBD)
+* fix [#2449](https://github.com/gridstack/gridstack.js/issues/2449) full grid maxRow fix
+
 ## 9.1.1 (2023-09-06)
 * fix [#2435](https://github.com/gridstack/gridstack.js/issues/2435) directionCollideCoverage() tweaks
 * fix resizeToContent() to handle node.h (using when cellHeight changes or we resize) vs DOM sizing (rest of the time)

src/gridstack-engine.ts

@@ -591,8 +591,9 @@ export class GridStackEngine {
     });
     if (!clonedNode) return false;
 
-    // check if we're covering 50% collision and could move
-    let canMove = clone.moveNode(clonedNode, o) && clone.getRow() <= this.maxRow;
+    // check if we're covering 50% collision and could move, while still being under maxRow or at least not making it worse
+    // (case where widget was somehow added past our max #2449)
+    let canMove = clone.moveNode(clonedNode, o) && clone.getRow() <= Math.max(this.getRow(), this.maxRow);
     // else check if we can force a swap (float=true, or different shapes) on non-resize
     if (!canMove && !o.resizing && o.collide) {
       let collide = o.collide.el.gridstackNode; // find the source node the clone collided with at 50%