Fixed to reset form value after it submitted

public_new/js/chat-ui.js

@@ -228,10 +228,14 @@ $('#videoUploadButton').on('click', function() {
 
 $('#imageInputTag').on('change', function() {
     $('#image-form').submit();
+    // reset the value of form
+    $('#imageInputTag').val("");
 });
 
 $('#videoInputTag').on('change', function() {
     $('#video-form').submit();
+    // reset the value of form
+    $('#videoInputTag').val("");
 });
 
 $('#image-form').on('submit', function(e) {