From b69cf15b00ac93e618f69a4add011da62791b2f8 Mon Sep 17 00:00:00 2001
From: viveleroi <botsko@gmail.com>
Date: Thu, 8 Feb 2024 08:47:35 -0800
Subject: [PATCH] Unsets lastSelectedNode if that node is deselected

---
 src/treenode.js                    |  4 ++++
 test/tree/lastSelectedNode.spec.js | 18 +++++++++++++++++-
 2 files changed, 21 insertions(+), 1 deletion(-)

diff --git a/src/treenode.js b/src/treenode.js
index cce08ffc..65d3ccbb 100644
--- a/src/treenode.js
+++ b/src/treenode.js
@@ -374,6 +374,10 @@ class TreeNode {
 
             baseStateChange('selected', false, 'deselected', this, deep);
 
+            if (this._tree._lastSelectedNode === this) {
+                this._tree._lastSelectedNode = null;
+            }
+
             this.context().end();
         }
 
diff --git a/test/tree/lastSelectedNode.spec.js b/test/tree/lastSelectedNode.spec.js
index 14b3b073..1ccb56cc 100644
--- a/test/tree/lastSelectedNode.spec.js
+++ b/test/tree/lastSelectedNode.spec.js
@@ -13,7 +13,11 @@ describe('Tree.lastSelectedNode', function() {
             }, {
                 text: 'B',
                 id: 2
-            }]
+            }],
+            selection: {
+                autoDeselect: false,
+                multiple: true
+            }
         });
     });
 
@@ -36,4 +40,16 @@ describe('Tree.lastSelectedNode', function() {
 
         expect(tree.lastSelectedNode().id).to.equal(2);
     });
+
+    it('returns last selected node even when another node is deselected', function() {
+        tree.node(1).deselect();
+
+        expect(tree.lastSelectedNode().id).to.equal(2);
+    });
+
+    it('returns undefined if last selected node is deselected', function() {
+        tree.node(2).deselect();
+
+        expect(tree.lastSelectedNode()).to.be.null;
+    });
 });