fix: Treat empty/null values as undefined

Fixes #12777

src/sentry/static/sentry/app/views/installWizard.jsx

@@ -64,8 +64,10 @@ export default class InstallWizard extends AsyncView {
       // XXX(dcramer): we need the user to explicitly choose beacon.anonymous
       // vs using an implied default so effectively this is binding
       // all values to their server-defaults (as client-side defaults dont really work)
+      // TODO(dcramer): we need to rethink this logic as doing multiple "is this value actually set"
+      // is problematic
       if (
-        option.value !== undefined &&
+        option.value !== undefined && option.value !== "" && option.value !== null &&
         (option.field.isSet || optionName != 'beacon.anonymous')
       ) {
         data[optionName] = option.value;