```react-native run-ios --configuration Release``` - does not run in Release mode, but Debug instead

[GeoffreyPlitt]

Is this a bug report?

Yes

Have you read the Contributing Guidelines?

Yes.

Environment

$ react-native info
Scanning 819 folders for symlinks in /Users/giro/stardust-app/node_modules (11ms)

Environment:
  OS:  macOS Sierra 10.12.6
  Node:  6.5.0
  Yarn:  0.24.6
  npm:  3.10.3
  Watchman:  4.7.0
  Xcode:  Xcode 9.0 Build version 9A235
  Android Studio:  Not Found

Packages: (wanted => installed)
  react: 16.0.0-alpha.12 => 16.0.0-alpha.12
  react-native: 0.48.0 => 0.48.0

Steps to Reproduce

Run the command in the title of this issue.

Expected Behavior

App runs in Release mode.

Actual Behavior

App runs in Debug mode-- shake menu, etc.

Reproducible Demo

Any skeleton RN app.

[hramos]

Hey, thanks for reporting this issue!

It looks like your description is missing some necessary information, or the list of reproduction steps is not complete. Can you please add all the details specified in the template? This is necessary for people to be able to understand and reproduce the issue being reported.

I am going to close this, but feel free to open a new issue that meets the requirements set forth in the template. Thanks!