fix(vdom): don't update value property if it hasn't changed

CHANGELOG.md

@@ -22,6 +22,7 @@
 - Implemented `FromIterator<(impl Into<Cow<'a, str>>, impl Into<Cow<'a, str>>)>` for `Headers`.
 - Derived `Eq` and `PartialEq` for `Header`.
 - Added `Header::name()` and `Header::value()`.
+- Fixed an issue in vdom where inputs with invalid contents being cleared on Firefox
 
 ## v0.8.0
 

src/browser/util.rs

@@ -213,6 +213,11 @@ fn set_html_input_element_value(
     input: &web_sys::HtmlInputElement,
     value: &str,
 ) -> Result<(), Cow<'static, str>> {
+    // Don't update if value hasn't changed
+    if value == input.value() {
+        return Ok(());
+    }
+
     // In some cases we need to set selection manually because
     // otherwise the cursor would jump at the end on some platforms.