ui: problemconfig: bug fix

packages/ui-default/components/problemconfig/reducer/config.ts

@@ -25,7 +25,7 @@ export default function reducer(state = {
           return { ...state, __valid: false, __errors: validate.errors.map((i) => `${i.instancePath}: ${i.message}`) };
         }
         const subtasks = (data as any).subtasks;
-        for (const subtask of subtasks) {
+        for (const subtask of subtasks || []) {
           if (typeof subtask.id !== 'number') {
             for (let i = 1; ; i++) {
               if (!subtasks.find((s) => s.id === i)) {

packages/ui-default/components/problemconfig/tree/SubtaskSettings.tsx

@@ -126,7 +126,7 @@ export function SubtaskSettings(props: SubtaskSettingsProps) {
         <span className="bp4-tree-node-caret-none bp4-icon-standard"></span>
         <span className="bp4-tree-node-label">{i18n('Scoring method')}</span>
         <span className="bp4-tree-node-secondary-label">
-          <select value={ctype} onChange={(e) => setType(e.target.value)}>
+          <select className="compact select" value={ctype} onChange={(e) => setType(e.target.value)}>
             <option value="min">Min</option>
             <option value="max">Max</option>
             <option value="sum">Sum</option>