Building for iOS with "--prod --release" changes numeric keypad display

Ionic Framework ionic-v3
1

Hello everyone - I stumbled on a weird behavior earlier today. Any ideas why this command:

ionic cordova build ios

would result in a standard number pad keyboard like this:

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Screen Shot 2018-09-26 at 2.03.52 PM.png750×604 50.3 KB

Whereas building with

ionic cordova build ios --prod --release

would result in this normal keyboard showing?

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Screen Shot 2018-09-26 at 2.08.29 PM.png742×616 72.3 KB

The number pad is intended and I always wondered why it didn’t work on iOS releases. This happens on devices or simulators from iOS10-12.

Thanks for any input on this. I am okay with either result at this point since what I lose in usability of the number pad I gain in the ability for users to enter decimal points.