Fixed bug when duplicating option tags (#1716)

yesod-form-multi/ChangeLog.md

@@ -1,5 +1,11 @@
 # Changelog
 
+## 1.7.0.1
+
+[#1716](https://github.com/yesodweb/yesod/pull/1716)
+
+* Fixed bug where duplicating `<option>` tags caused the `value` field to be cleared
+
 ## 1.7.0
 
 [#1707](https://github.com/yesodweb/yesod/pull/1707)

yesod-form-multi/Yesod/Form/MultiInput.hs

@@ -304,11 +304,14 @@ mhelperMulti field@Field {..} fs@FieldSettings {..} wrapperClass defs minVals Mu
                     // input types where we don't want to reset the value
                     const keepValueTypes = ["radio", "checkbox", "button"];
 
+                    var shouldKeep = keepValueTypes.includes(e.prop('type'))
+                                        || e.prop("tagName") == "OPTION";
+
                     // uncheck any checkboxes or radio fields and empty any text boxes
                     if(e.prop('checked') == true)
                         e.prop('checked', false);
 
-                    if(!keepValueTypes.includes(e.prop('type')))
+                    if(!shouldKeep)
                         e.val("").trigger("change");
                         // trigger change is to ensure WYSIWYG editors are updated
                         // when their hidden code field is cleared

yesod-form-multi/yesod-form-multi.cabal

@@ -1,5 +1,5 @@
 name:            yesod-form-multi
-version:         1.7.0
+version:         1.7.0.1
 license:         MIT
 license-file:    LICENSE
 author:          James Burton <jamesejburton@gmail.com>