fix: remove stale value check from OrderQuestion initial; guard wrong class in Match

.idea/.gitignore

@@ -0,0 +1,10 @@
+# Default ignored files
+/shelf/
+/workspace.xml
+# Ignored default folder with query files
+/queries/
+# Datasource local storage ignored files
+/dataSources/
+/dataSources.local.xml
+# Editor-based HTTP Client requests
+/httpRequests/

.idea/brainwave.iml

@@ -0,0 +1,9 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<module type="JAVA_MODULE" version="4">
+  <component name="NewModuleRootManager" inherit-compiler-output="true">
+    <exclude-output />
+    <content url="file://$MODULE_DIR$" />
+    <orderEntry type="inheritedJdk" />
+    <orderEntry type="sourceFolder" forTests="false" />
+  </component>
+</module>

.idea/misc.xml

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="ProjectRootManager" version="2" project-jdk-name="jbr-25" project-jdk-type="JavaSDK">
+    <output url="file://$PROJECT_DIR$/out" />
+  </component>
+</project>

.idea/modules.xml

@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="ProjectModuleManager">
+    <modules>
+      <module fileurl="file://$PROJECT_DIR$/.idea/brainwave.iml" filepath="$PROJECT_DIR$/.idea/brainwave.iml" />
+    </modules>
+  </component>
+</project>

.idea/vcs.xml

@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="VcsDirectoryMappings">
+    <mapping directory="" vcs="Git" />
+    <mapping directory="$PROJECT_DIR$" vcs="Git" />
+  </component>
+</project>

frontend/src/components/questions/Match.tsx

@@ -57,7 +57,7 @@ export default function Match({ q, value, onChange, locked, graded }: Props) {
           else if (current[item.id]) cls += ' paired'
           if (graded) {
             if (answer[item.id] && current[item.id] === answer[item.id]) cls += ' correct'
-            else if (current[item.id]) cls += ' wrong'
+            else if (current[item.id] && answer[item.id]) cls += ' wrong'
           }
           const pairedRightIdx = current[item.id]
             ? (q.right ?? []).findIndex((x) => x.id === current[item.id])

frontend/src/components/questions/OrderQuestion.tsx

@@ -14,7 +14,6 @@ export default function OrderQuestion({ q, value, onChange, locked, graded }: Pr
   const items = q.items ?? []
 
   const initial = useMemo(() => {
-    if (Array.isArray(value) && value.length === items.length) return value
     const ids = items.map((i) => i.id)
     const seed = q.id.split('').reduce((a, c) => a + c.charCodeAt(0), 0)
     const out = [...ids]
@@ -58,7 +57,7 @@ export default function OrderQuestion({ q, value, onChange, locked, graded }: Pr
             className={cls}
             draggable={!locked}
             onDragStart={(e) => { setDragIdx(idx); e.dataTransfer.effectAllowed = 'move' }}
-            onDragOver={(e) => { e.preventDefault(); setOverIdx(idx) }}
+            onDragOver={(e) => { e.preventDefault(); if (dragIdx !== idx) setOverIdx(idx) }}
             onDrop={(e) => {
               e.preventDefault()
               if (dragIdx != null && dragIdx !== idx) move(dragIdx, idx)