Fix: Prevent click-ouside to lose children ref

lib/click-outside/click-outside.tsx

@@ -1,4 +1,5 @@
-import React, { useRef, useEffect, MouseEvent } from 'react'
+import React, { useRef, useEffect, MouseEvent, ReactElement } from 'react'
+import mergeRefs from 'react-merge-refs'
 import hasParent from './has-parent'
 
 interface ClickOutsideProps {
@@ -13,13 +14,9 @@ const ClickOutside = ({
   children,
 }: ClickOutsideProps) => {
   const innerRef = useRef()
-
+  const child = children ? React.Children.only(children) : undefined
-  const handleClick = (event: any) => {
+  if (!child) {
-    if (!hasParent(event.target, innerRef?.current)) {
+    throw new Error('A valid non Fragment React Children should be provided')
-      if (typeof onClick === 'function') {
-        onClick(event)
-      }
-    }
   }
 
   useEffect(() => {
@@ -36,7 +33,27 @@ const ClickOutside = ({
     }
   })
 
-  return React.cloneElement(children, { ref: innerRef })
+  const handleClick = (event: any) => {
+    if (!hasParent(event.target, innerRef?.current)) {
+      if (typeof onClick === 'function') {
+        onClick(event)
+      }
+    }
+  }
+
+  const composedRefCallback = (element: ReactElement) => {
+    if (child) {
+      if (typeof child.ref === 'function') {
+        child.ref(element)
+      } else if (child.ref) {
+        child.ref.current = element
+      }
+    }
+  }
+
+  return React.cloneElement(child, {
+    ref: mergeRefs([composedRefCallback, innerRef]),
+  })
 }
 
 export default ClickOutside