fix: cast values to numbers before commiting them closes #2403

src/utils/events.ts

@@ -1,4 +1,4 @@
-import { isCallable, toArray } from './index';
+import { isCallable, toArray, isNaN } from './index';
 
 export const isEvent = (evt: any): evt is Event => {
   if (!evt) {
@@ -18,15 +18,30 @@ export const isEvent = (evt: any): evt is Event => {
   return false;
 };
 
+type BoundInputElement = HTMLInputElement & {
+  _vModifiers?: { number?: boolean; trim?: boolean };
+};
+
 export function normalizeEventValue(value: unknown): any {
   if (!isEvent(value)) {
     return value;
   }
 
-  const input = value.target as HTMLInputElement;
+  const input = value.target as BoundInputElement;
   if (input.type === 'file' && input.files) {
     return toArray(input.files);
   }
 
+  // If the input has a `v-model.number` modifier applied.
+  if (input._vModifiers && input._vModifiers.number) {
+    // as per the spec the v-model.number uses parseFloat
+    const valueAsNumber = parseFloat(input.value);
+    if (isNaN(valueAsNumber)) {
+      return input.value;
+    }
+
+    return valueAsNumber;
+  }
+
   return input.value;
 }