From c36593880b8fd6fd79a6e91f5330ca7bd03eb309 Mon Sep 17 00:00:00 2001
From: Hayleigh Thompson <me@hayleigh.dev>
Date: Sun, 23 Jul 2023 18:24:46 +0100
Subject: :bug: Fixed bug where attributes would not be removed correctly
 during patching.

---
 src/runtime.ffi.mjs | 15 +++++++++------
 1 file changed, 9 insertions(+), 6 deletions(-)

diff --git a/src/runtime.ffi.mjs b/src/runtime.ffi.mjs
index 1a1af4b..a29055d 100644
--- a/src/runtime.ffi.mjs
+++ b/src/runtime.ffi.mjs
@@ -91,12 +91,15 @@ function morphElement(prev, curr, ns, parent) {
   }
 
   for (const { name, value: prevValue } of prevAttrs) {
-    if (!currAttrs.has(name)) prev.removeAttribute(name);
-    const value = currAttrs.get(name);
-
-    if (value !== prevValue) {
-      morphAttr(prev, name, value);
-      currAttrs.delete(name);
+    if (!currAttrs.has(name)) {
+      prev.removeAttribute(name);
+    } else {
+      const value = currAttrs.get(name);
+
+      if (value !== prevValue) {
+        morphAttr(prev, name, value);
+        currAttrs.delete(name);
+      }
     }
   }
 
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