Tags field: tags not split when pasted

[RM1234567890]

Description

In the panel, when pasting multiple tags that are separated with a comma into the input field, the tags that are not split after hitting the + button.

First they are shown as one long tag, like "Tag 1, Tag 2, Tag 3, Tag 4, Tag 5, Tag 6, Tag 7, Tag 8".
Only once the page is saved, then the page is refreshed are the multiple tags split to be shown as separate tags.

Expected behavior
After pasting multiple tags that are separated with a comma, hitting enter will split them into separate tags.
I believe this worked fine in earlier versions of Kirby (as I have an older site running 3.9.8 and it doesn't have this issue).

Screenshots
1: pasting in multiple tags separated by a comma:

2: after hitting the + button, the tags are shown like this:

3: only after saving the page, then refreshing the page are the tags split and shown correctly.

To reproduce

1. Go to a tags field.
2. Paste in multiple tags separated by a comma, for example: "Tag 1, Tag 2, Tag 3, Tag 4, Tag 5, Tag 6, Tag 7, Tag 8"
3. Hit the + button to add the tags to the field.
4. See that the tags are not split and instead are shown as 1 long tag.

Your setup

Kirby Version
4.1.1

Console output
No errors

Your system (please complete the following information)

• OS: Mac Sonoma 14.1.2
• Browser: Chrome v. 122.0.6261.69

[RM1234567890]

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