fix(AppResources): default SpAppResource.description to name on creation

specifyweb/frontend/js_src/lib/components/AppResources/Create.tsx

@@ -259,17 +259,7 @@ function EditAppResource({
   readonly templateFile: string | undefined;
 }): JSX.Element {
   const resource = React.useMemo(
-    () =>
-      deserializeResource(
-        addMissingFields(type.tableName as 'SpAppResource', {
-          // I don't think this field is used anywhere
-          level: 0,
-          mimeType,
-          name: name.trim(),
-          specifyUser: userInformation.resource_uri,
-          spAppResourceDir: directory.resource_uri,
-        })
-      ),
+    () => buildNewAppResource(type, name, mimeType, directory),
     [directory, name, type, mimeType]
   );
 
@@ -321,6 +311,29 @@ function EditAppResource({
   );
 }
 
+/**
+ * S6 hard-fails when opening a label whose spappresource.Description is NULL,
+ * so default description to the resource name on creation. See ticket #824.
+ */
+const buildNewAppResource = (
+  type: AppResourceType,
+  name: string,
+  mimeType: string | undefined,
+  directory: SerializedResource<SpAppResourceDir>
+) =>
+  deserializeResource(
+    addMissingFields(type.tableName as 'SpAppResource', {
+      // I don't think this field is used anywhere
+      level: 0,
+      mimeType,
+      name: name.trim(),
+      description: name.trim(),
+      specifyUser: userInformation.resource_uri,
+      spAppResourceDir: directory.resource_uri,
+    })
+  );
+
 export const exportsForTests = {
   getUrl,
+  buildNewAppResource,
 };

specifyweb/frontend/js_src/lib/components/AppResources/__tests__/CreateAppResource.test.tsx

@@ -6,10 +6,15 @@ import { requireContext } from '../../../tests/helpers';
 import { mount } from '../../../tests/reactUtils';
 import { TestComponentWrapperRouter } from '../../../tests/utils';
 import { LoadingContext } from '../../Core/Contexts';
+import type { SerializedResource } from '../../DataModel/helperTypes';
+import type { SpAppResourceDir } from '../../DataModel/types';
 import { UnloadProtectsContext } from '../../Router/UnloadProtect';
-import { CreateAppResource } from '../Create';
+import { CreateAppResource, exportsForTests } from '../Create';
+import { appResourceTypes } from '../types';
 import { testAppResources } from './testAppResources';
 
+const { buildNewAppResource } = exportsForTests;
+
 requireContext();
 
 beforeEach(() => {
@@ -98,3 +103,22 @@ describe('CreateAppResource', () => {
     );
   });
 });
+
+describe('buildNewAppResource', () => {
+  const directory = {
+    resource_uri: '/api/specify/spappresourcedir/1/',
+  } as SerializedResource<SpAppResourceDir>;
+
+  // Specify 6 hard-fails on labels whose spappresource.Description is NULL,
+  // so a freshly created resource must carry a non-null description (#824).
+  test('defaults description to the trimmed name', () => {
+    const resource = buildNewAppResource(
+      appResourceTypes.appResources,
+      '  My Label  ',
+      'text/xml',
+      directory
+    );
+    expect(resource.get('name')).toBe('My Label');
+    expect(resource.get('description')).toBe('My Label');
+  });
+});