bug: ion-datetime title is not displayed when presentation="month-year"

[Serg-Mois]

Prerequisites

• I have read the Contributing Guidelines.
• I agree to follow the Code of Conduct.
• I have searched for existing issues that already report this problem, without success.

Ionic Framework Version

• v4.x
• v5.x
• v6.x
• Nightly

Current Behavior

slot="title" is not displayed when presentation="month-year" and [preferWheel]="true"

Expected Behavior

Title is displayed

Steps to Reproduce

<ion-datetime-button datetime="datetime"></ion-datetime-button>

<ion-modal [keepContentsMounted]="true">
  <ng-template>
    <ion-datetime presentation="month-year" id="datetime" [preferWheel]="true">
      <div slot="title">MY TITLE</div>
    </ion-datetime>
  </ng-template>
</ion-modal>

But if you change the presentation to "date" - everything works as expected

Code Reproduction URL

https://stackblitz.com/edit/angular-4shiwd-7qhimw?file=src%2Fapp%2Fexample.component.html

Ionic Info

"@ionic/angular": "6.4.1",
"@ionic/core": "6.4.1"

Additional Information

No response

[averyjohnston]

Thank you for the issue. Sure enough, we aren't currently rendering the header for the month-year presentation (among others), but this should be adjusted. I'll get a fix up soon.

[averyjohnston]

Here's an Ionic dev build if you're interested in testing the proposed fix:

npm install @ionic/angular@6.4.3-dev.11673985390.12798de9

[averyjohnston]

I've gone ahead and merged in the fix: #26616 It will be available in an upcoming patch release of Ionic Framework, but feel free to take a look at the dev build if you'd like to try it sooner.

[ionitron-bot]

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