Buggy dropdown won't close properly and doesn't set value correctly sometimes

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Is there an existing issue for this?

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GLPI Version

11.0.5

Plugin version

1.23.3

Bug description

When selecting a value in any dropdown (not necessary the custom fields dropdown) of an item with custom fields the dropdown get buggy and doesn't close because of a javascript error.

While debugging I found out that it's the refreshContainer function that fail when the function get multiple_matches and that the current field that matched has an empty string value.

Example with groups_id_tech :

A fix would be to add a check to see if the value is an empty string at this line so it would create an empty array in this case which would make the push method works a few line after :

fields/inc/field.class.php

Line 1013 in fab59ee

if (!(name in obj)) {

Relevant log output

Uncaught TypeError: obj[name].push is not a function
    at <anonymous>:13:39
    at Array.reduce (<anonymous>)
    at refreshContainer (<anonymous>:5:104)
    at HTMLSelectElement.<anonymous> (<anonymous>:75:29)
    at HTMLFormElement.dispatch (base.min.js?v=af270aae27c4d597be591a74861f215576327064:11:41760)
    at v.handle (base.min.js?v=af270aae27c4d597be591a74861f215576327064:11:39643)
    at Object.trigger (base.min.js?v=af270aae27c4d597be591a74861f215576327064:11:73967)
    at HTMLSelectElement.<anonymous> (base.min.js?v=af270aae27c4d597be591a74861f215576327064:11:74602)
    at A.each (base.min.js?v=af270aae27c4d597be591a74861f215576327064:11:3080)
    at obj.<computed>.each (base.min.js?v=af270aae27c4d597be591a74861f215576327064:11:1458)

Page URL

No response

Steps To reproduce

1. Set custom fields on an itemtype
2. Set fields which can get multiples values (like groups) with a value
3. Try to set the value of a dropdown (the bug should happen instantly and the js error appears in the browser console)

Your GLPI setup information

No response

Anything else?

No response