From 3bb6c4bc300b4358f105c2d0d909dac793e2cad3 Mon Sep 17 00:00:00 2001
From: Evan Almloff <ealmlof1@stumail.jccc.edu>
Date: Tue, 28 Mar 2023 13:34:37 -0500
Subject: [PATCH] don't add no op mutations

---
 packages/core/src/diff.rs | 30 ++++++++++++++++++------------
 1 file changed, 18 insertions(+), 12 deletions(-)

diff --git a/packages/core/src/diff.rs b/packages/core/src/diff.rs
index fdc1a03f1..6f84b21aa 100644
--- a/packages/core/src/diff.rs
+++ b/packages/core/src/diff.rs
@@ -628,10 +628,12 @@ impl<'b> VirtualDom {
             }
 
             let id = self.find_last_element(&new[last]);
-            self.mutations.push(Mutation::InsertAfter {
-                id,
-                m: nodes_created,
-            });
+            if nodes_created > 0 {
+                self.mutations.push(Mutation::InsertAfter {
+                    id,
+                    m: nodes_created,
+                })
+            }
             nodes_created = 0;
         }
 
@@ -652,10 +654,12 @@ impl<'b> VirtualDom {
                 }
 
                 let id = self.find_first_element(&new[last]);
-                self.mutations.push(Mutation::InsertBefore {
-                    id,
-                    m: nodes_created,
-                });
+                if nodes_created > 0 {
+                    self.mutations.push(Mutation::InsertBefore {
+                        id,
+                        m: nodes_created,
+                    });
+                }
 
                 nodes_created = 0;
             }
@@ -676,10 +680,12 @@ impl<'b> VirtualDom {
             }
 
             let id = self.find_first_element(&new[first_lis]);
-            self.mutations.push(Mutation::InsertBefore {
-                id,
-                m: nodes_created,
-            });
+            if nodes_created > 0 {
+                self.mutations.push(Mutation::InsertBefore {
+                    id,
+                    m: nodes_created,
+                });
+            }
         }
     }