'MULTI' mode, daysConfig passed as marked, are not marked as 'selected' and are not included in the returned dates values

[chrisvor]

Ionic version: (check one with "x")
[ ] 2.x
[ ] 3.x
[ ] 4.x
[ x ] 5.x

Ion2-calendar mode: (check one with "x")
[ x ] components mode
[ ] modal mode

I'm submitting a ... (check one with "x")
[ x ] bug report
[ ] feature request
[ ] help me

Current behavior:
I pass a "daysConfig" array, with "marked": true when using the component in "MULTI" mode. The days passed are marked in "green" colour but are NOT "selected" and are not included in the array returned by the component in the ngModel array bound.

Expected behavior:
The days in "daysConfig" should be marked as "selected" and returned in the array bound.

Steps to reproduce:

Related code:

CONTROLLER:
public dateMulti: string[] = [];
public type: 'string';
public daysConfig: DayConfig[] = [];
public optionsMulti = {
pickMode: "multi",
title: 'Select dates',
weekStart: 1,
daysConfig: []
}

ngOnInit() {
for (let d in this.dates) {
this.daysConfig.push({
date: new Date(this.dates[d]),
marked: true
})
}
if (this.daysConfig.length > 0) {
this.optionsMulti.daysConfig = this.daysConfig;
}
}

HTML:
<ion-calendar
[(ngModel)] = "dateMulti"
[options] = "optionsMulti"
[type] = "type"
(change) = "calChange($event)"
[format] = "'YYYY-MM-DD'">

Other information:

Ionic info: (run ionic info from a terminal/cmd prompt and paste output below):

Ionic:

Ionic CLI : 6.16.3 (/usr/local/lib/node_modules/@ionic/cli)
Ionic Framework : @ionic/angular 5.5.2
@angular-devkit/build-angular : 0.901.13
@angular-devkit/schematics : 9.0.3
@angular/cli : 9.1.13
@ionic/angular-toolkit : 2.3.3

Capacitor:

Capacitor CLI : 2.4.6
@capacitor/android : 2.4.6
@capacitor/core : 2.4.6
@capacitor/ios : 2.4.6

Utility:

cordova-res : not installed globally
native-run (update available: 1.4.0) : 0.3.0

System:

NodeJS : v14.15.1 (/usr/local/bin/node)
npm : 7.20.0
OS : macOS Big Sur

[chrisvor]

Answering my own question, the daysConfig just "marks" the dates, with possible text as well, it does not add them to the returned array. However if you pre-populate the bound array with the dates that should be "pre-selected", they are marked as such on the calendar, and they are returned in the array back together with newly added dates (or removed if you de-select them)