[Ionic v4.0.0-beta.3] ion-select popover interface hidden by modal (incorrect z-index)

Bug Report

Ionic Info Run ionic info from a terminal/cmd prompt and paste the output below.

Ionic:

   ionic (Ionic CLI)          : 4.0.6 (/Users/Joey/.nvm/versions/node/v8.11.3/lib/node_modules/ionic)
   Ionic Framework            : @ionic/angular 4.0.0-beta.3
   @angular-devkit/core       : 0.7.4
   @angular-devkit/schematics : 0.7.4
   @angular/cli               : 6.1.4
   @ionic/ng-toolkit          : 1.0.6
   @ionic/schematics-angular  : 1.0.5

Cordova:

   cordova (Cordova CLI) : 8.0.0
   Cordova Platforms     : none

System:

   ios-deploy : 1.9.1
   ios-sim    : 5.0.13
   NodeJS     : v8.11.3 (/Users/Joey/.nvm/versions/node/v8.11.3/bin/node)
   npm        : 6.4.0
   OS         : macOS High Sierra
   Xcode      : Xcode 9.4.1 Build version 9F2000

Describe the Bug

When a modal contains an <ion-select interface="popover">, the popover drop-down displaying the options is hidden because the <ion-modal> has a higher z-index than the <ion-popover>

Steps to Reproduce Steps to reproduce the behavior:

1. Create a component that contains an <ion-select interface="popover">
2. open that component as a modal using modalCtrl.create().then(modal=>modal.present())
3. Navigate in the app to open the modal and then open or tap on the <ion-select> to open up the options popover

Expected Behavior

You should be able to see the popover, but nothing appears. If you hit esc, it will close the modal, and then you can see the popover that was supposed to show up inside the modal. This popover is now orphaned because it’s parent <ion-select> got removed with the modal.

Inspecting with dev-tools shows that the following z-indexes get applied in my app:

• <ion-modal> => element.style { z-index: 20003;}
• <ion-popover> => element.style { z-index: 10004;}

[manucorporat]

Already fixed in master! should be fixed in next release!

[brandyscarney]

Thanks for the issue!

Related to / possible duplicate of #14662