Run patch-package only on development (test+publish)

package.json

@@ -81,7 +81,7 @@
     "test-browser": "npm i karma-phantomjs-launcher && karma start",
     "bundle": "rollup -c && eslint underscore-umd.js && rollup -c rollup.config2.js",
     "bundle-treeshake": "cd test-treeshake && rollup --config",
-    "prepare-tests": "npm run bundle && npm run bundle-treeshake",
+    "prepare-tests": "patch-package && npm run bundle && npm run bundle-treeshake",
     "minify-umd": "terser underscore-umd.js -c \"evaluate=false\" --comments \"/    .*/\" -m",
     "minify-esm": "terser underscore-esm.js -c \"evaluate=false\" --comments \"/    .*/\" -m",
     "module-package-json": "node -e 'console.log(`{\"type\":\"module\",\"version\":\"${process.env.npm_package_version}\"}`)' > modules/package.json",
@@ -91,8 +91,7 @@
     "build": "npm run bundle && npm run build-umd && npm run build-esm && npm run alias-bundle",
     "doc": "docco underscore-esm.js && docco modules/*.js -c docco.css -t docs/linked-esm.jst",
     "weight": "npm run bundle && npm run minify-umd | gzip-size | pretty-bytes",
-    "prepublishOnly": "npm run build && npm run doc",
-    "postinstall": "patch-package"
+    "prepublishOnly": "patch-package && npm run build && npm run doc"
   },
   "files": [
     "underscore-esm.js",