fix: option should display as selected even when value is an object

src/composables/useOptions.js

@@ -3,6 +3,7 @@ import normalize from './../utils/normalize'
 import isObject from './../utils/isObject'
 import isNullish from './../utils/isNullish'
 import arraysEqual from './../utils/arraysEqual'
+import objectsEqual from './../utils/objectsEqual'
 import toRef from './../utils/toRef'
 
 export default function useOptions (props, context, dep)
@@ -325,7 +326,10 @@ export default function useOptions (props, context, dep)
 
     switch (mode.value) {
       case 'single':
-        return !isNullish(iv.value) && iv.value[valueProp.value] == option[valueProp.value]
+        return !isNullish(iv.value) && (
+          iv.value[valueProp.value] == option[valueProp.value] ||
+          (typeof iv.value[valueProp.value] === 'object' && typeof option[valueProp.value] === 'object' && objectsEqual(iv.value[valueProp.value], option[valueProp.value]))
+        )
 
       case 'tags':
       case 'multiple':

src/utils/objectsEqual.js

@@ -0,0 +1,37 @@
+const objectsEqual = (obj1, obj2) => {
+  // If both are strictly equal, return true
+  if (obj1 === obj2) {
+    return true
+  }
+
+  // If either is not an object or is null, return false (handles primitive types and null)
+  if (typeof obj1 !== 'object' || obj1 === null || typeof obj2 !== 'object' || obj2 === null) {
+    return false
+  }
+
+  // Get the keys of both objects
+  const keys1 = Object.keys(obj1)
+  const keys2 = Object.keys(obj2)
+
+  // If they have a different number of keys, they're not equal
+  if (keys1.length !== keys2.length) {
+    return false
+  }
+
+  // Compare each key-value pair recursively
+  for (let key of keys1) {
+    // Check if both objects have the same key
+    if (!keys2.includes(key)) {
+      return false
+    }
+
+    // Recursively compare the values
+    if (!objectsEqual(obj1[key], obj2[key])) {
+      return false
+    }
+  }
+
+  return true
+}
+
+export default objectsEqual