Error when shrinking holiday interval

[jaragunde]

In holidayManagement.php, steps to reproduce:

1. Create a holiday period between Monday and Friday, and save it.
2. Click on Friday, then on Wednesday.

Expected: period between Wed and Fri is set.
Actual: range disappears, error shows up in the console:

TypeError: day.attributes[idx] is undefined
    onDayClick http://localhost/phpreport/web/js/holidayManagement.js:297
    VueJS 4
    onDayClick http://localhost/phpreport/web/vuejs/v-calendar.2.3.2.min.js:1
    VueJS 4
    click http://localhost/phpreport/web/vuejs/v-calendar.2.3.2.min.js:1
    VueJS 24
    refreshPages http://localhost/phpreport/web/vuejs/v-calendar.2.3.2.min.js:1
    refreshPages http://localhost/phpreport/web/vuejs/v-calendar.2.3.2.min.js:1
    move http://localhost/phpreport/web/vuejs/v-calendar.2.3.2.min.js:1
    r http://localhost/phpreport/web/vuejs/v-calendar.2.3.2.min.js:1
    VueJS 17
vue.min.js:6:11762

Some additional facts:

• It doesn't happen if you click on Monday, then on Wednesday.
• It does happen if you click on Monday and then on Friday the week before.