Bug Report
What is the expected behavior?
After adding @nguniversal using ng add, without a default workspace application, the environment path from angular.json in projects.[clientProject].architect.server.configurations.production.fileReplacement should inherit the same values from projects.[clientProject].architect.build.configurations.production.fileReplacement.
What is the current behavior?
Environment path is populated with the default "src/environments/environment.ts" value, regardless of the specified clientProject environment path.

What modules are related to this issue?
- [ ] aspnetcore-engine
- [ ] common
- [x] express-engine
- [ ] hapi-engine
- [ ] module-map-ngfactory-loader
Minimal reproduction with instructions:
- Create empty workspace : ng new appEnvironment --create-application false --routing false --style css
- Create application : ng g application bug --routing --style css
- Add @nguniversal to"bug" application : ng add @nguniversal/express-engine --clientProject bug
- Run build:ssr : npm run build:ssr
[fail]
What is the use-case or motivation for changing an existing behavior?
Fix bug. Unfrustrate. Promote world peace.
Environment:
Angular CLI: 8.0.3
Node: 12.3.1
OS: win32 x64
Angular: 8.0.1
... animations, common, compiler, compiler-cli, core, forms
... language-service, platform-browser, platform-browser-dynamic
... platform-server, router
Package Version
@angular-devkit/architect 0.800.3
@angular-devkit/build-angular 0.800.3
@angular-devkit/build-optimizer 0.800.3
@angular-devkit/build-webpack 0.800.3
@angular-devkit/core 8.0.3
@angular-devkit/schematics 8.0.3
@angular/cli 8.0.3
@ngtools/webpack 8.0.3
@nguniversal/express-engine 7.0.2
@nguniversal/module-map-ngfactory-loader 7.0.2
@schematics/angular 8.0.3
@schematics/update 0.800.3
rxjs 6.4.0
typescript 3.4.5
webpack 4.30.0
Is there anything else we should know?
You rock!