Fixes.

package.json

@@ -17,7 +17,7 @@
     "node": "^18.x"
   },
   "scripts": {
-    "build": "NODE_ENV=development yarn && yarn lint && NODE_ENV=production webpack --mode production --bail --progress",
+    "build": "NODE_ENV=development yarn && yarn lint && yarn jest && NODE_ENV=production webpack --mode production --bail --progress",
     "dev": "NODE_ENV=development webpack --progress",
     "watch": "NODE_ENV=development webpack --watch --progress",
     "css": "WEBPACK_CHILD=css npm run build",
@@ -54,6 +54,7 @@
     "@silverstripe/webpack-config": "^2.0.0",
     "babel-jest": "^29.3.0",
     "babel-loader": "^9.1.3",
+    "babel-plugin-transform-object-rest-spread": "^6.26.0",
     "enzyme": "^3.6.0",
     "enzyme-adapter-react-16": "^1.5.0",
     "jest-cli": "^29.3.0",

yarn.lock

@@ -2371,6 +2371,19 @@ babel-plugin-polyfill-regenerator@^0.5.5:
   dependencies:
     "@babel/helper-define-polyfill-provider" "^0.5.0"
 
+babel-plugin-syntax-object-rest-spread@^6.8.0:
+  version "6.13.0"
+  resolved "https://registry.yarnpkg.com/babel-plugin-syntax-object-rest-spread/-/babel-plugin-syntax-object-rest-spread-6.13.0.tgz#fd6536f2bce13836ffa3a5458c4903a597bb3bf5"
+  integrity sha512-C4Aq+GaAj83pRQ0EFgTvw5YO6T3Qz2KGrNRwIj9mSoNHVvdZY4KO2uA6HNtNXCw993iSZnckY1aLW8nOi8i4+w==
+
+babel-plugin-transform-object-rest-spread@^6.26.0:
+  version "6.26.0"
+  resolved "https://registry.yarnpkg.com/babel-plugin-transform-object-rest-spread/-/babel-plugin-transform-object-rest-spread-6.26.0.tgz#0f36692d50fef6b7e2d4b3ac1478137a963b7b06"
+  integrity sha512-ocgA9VJvyxwt+qJB0ncxV8kb/CjfTcECUY4tQ5VT7nP6Aohzobm8CDFaQ5FHdvZQzLmf0sgDxB8iRXZXxwZcyA==
+  dependencies:
+    babel-plugin-syntax-object-rest-spread "^6.8.0"
+    babel-runtime "^6.26.0"
+
 [email protected]:
   version "6.7.4"
   resolved "https://registry.yarnpkg.com/babel-polyfill/-/babel-polyfill-6.7.4.tgz#757ea852e32952b9bfe0db96f464fcee642796a8"
@@ -2418,6 +2431,14 @@ babel-runtime@^5.0.0:
   dependencies:
     core-js "^1.0.0"
 
+babel-runtime@^6.26.0:
+  version "6.26.0"
+  resolved "https://registry.yarnpkg.com/babel-runtime/-/babel-runtime-6.26.0.tgz#965c7058668e82b55d7bfe04ff2337bc8b5647fe"
+  integrity sha512-ITKNuq2wKlW1fJg9sSW52eepoYgZBggvOAHC0u/CYu/qxQ9EVzThCgR69BnSXLHjy2f7SY5zaQ4yt7H9ZVxY2g==
+  dependencies:
+    core-js "^2.4.0"
+    regenerator-runtime "^0.11.0"
+
 balanced-match@^1.0.0:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/balanced-match/-/balanced-match-1.0.2.tgz#e83e3a7e3f300b34cb9d87f615fa0cbf357690ee"
@@ -2884,7 +2905,7 @@ core-js@^1.0.0:
   resolved "https://registry.yarnpkg.com/core-js/-/core-js-1.2.7.tgz#652294c14651db28fa93bd2d5ff2983a4f08c636"
   integrity sha512-ZiPp9pZlgxpWRu0M+YWbm6+aQ84XEfH1JRXvfOc/fILWI0VKhLC2LX13X1NYq4fULzLMq7Hfh43CSo2/aIaUPA==
 
-core-js@^2.1.0:
+core-js@^2.1.0, core-js@^2.4.0:
   version "2.6.12"
   resolved "https://registry.yarnpkg.com/core-js/-/core-js-2.6.12.tgz#d9333dfa7b065e347cc5682219d6f690859cc2ec"
   integrity sha512-Kb2wC0fvsWfQrgk8HU5lW6U/Lcs8+9aaYcy4ZFc6DDlo4nZ7n70dEgE5rtR0oG6ufKDUnrwfWL1mXR5ljDatrQ==
@@ -7160,6 +7181,11 @@ regenerate@^1.4.2:
   resolved "https://registry.yarnpkg.com/regenerate/-/regenerate-1.4.2.tgz#b9346d8827e8f5a32f7ba29637d398b69014848a"
   integrity sha512-zrceR/XhGYU/d/opr2EKO7aRHUeiBI8qjtfHqADTwZd6Szfy16la6kqD0MIUs5z5hx6AaKa+PixpPrR289+I0A==
 
+regenerator-runtime@^0.11.0:
+  version "0.11.1"
+  resolved "https://registry.yarnpkg.com/regenerator-runtime/-/regenerator-runtime-0.11.1.tgz#be05ad7f9bf7d22e056f9726cee5017fbf19e2e9"
+  integrity sha512-MguG95oij0fC3QV3URf4V2SDYGJhJnJGqvIIgdECeODCT98wSWDAJ94SSuVpYQUoTcGUIL6L4yNB7j1DFFHSBg==
+
 regenerator-runtime@^0.14.0:
   version "0.14.1"
   resolved "https://registry.yarnpkg.com/regenerator-runtime/-/regenerator-runtime-0.14.1.tgz#356ade10263f685dda125100cd862c1db895327f"