[Bug]: Can't save the item when adding a new category

[pavlenex]

What is your BTCPay version?

1.11.0

How did you deploy BTCPay Server?

Docker, BTCPay master test instance, using Paralelni POS store and Paralelni Polis POS app

What happened?

When trying to add a new category, you can't save, and it spits out the error.

cat-problem.mp4

How did you encounter this bug?

1. Go to btcpay master test instance
2. Go to Paralelni Store
3. Go to Paralelni POS
4. Edit any iteam
5. Add a category such ascoffee
6. Click save
7. It can't save and spits the console error log.

Relevant log output

vue.min.js?v=RQP_FOA6ovPWyB3RlJeIqCW_T_fi6VDpso1V6bVQY_I:11 TypeError: Cannot read properties of undefined (reading 'indexOf')
    at Cr.validate (pos:950:50)
    at Cr.saveItem (pos:929:27)
    at click (eval at sc (vue.min.js?v=RQP_FOA6ovPWyB3RlJeIqCW_T_fi6VDpso1V6bVQY_I:11:104811), <anonymous>:3:8606)
    at dn (vue.min.js?v=RQP_FOA6ovPWyB3RlJeIqCW_T_fi6VDpso1V6bVQY_I:11:21974)
    at HTMLButtonElement.r (vue.min.js?v=RQP_FOA6ovPWyB3RlJeIqCW_T_fi6VDpso1V6bVQY_I:11:10396)
    at i._wrapper (vue.min.js?v=RQP_FOA6ovPWyB3RlJeIqCW_T_fi6VDpso1V6bVQY_I:11:59525)
vn @ vue.min.js?v=RQP_FOA6ovPWyB3RlJeIqCW_T_fi6VDpso1V6bVQY_I:11
pn @ vue.min.js?v=RQP_FOA6ovPWyB3RlJeIqCW_T_fi6VDpso1V6bVQY_I:11
fn @ vue.min.js?v=RQP_FOA6ovPWyB3RlJeIqCW_T_fi6VDpso1V6bVQY_I:11
dn @ vue.min.js?v=RQP_FOA6ovPWyB3RlJeIqCW_T_fi6VDpso1V6bVQY_I:11
r @ vue.min.js?v=RQP_FOA6ovPWyB3RlJeIqCW_T_fi6VDpso1V6bVQY_I:11
i._wrapper @ vue.min.js?v=RQP_FOA6ovPWyB3RlJeIqCW_T_fi6VDpso1V6bVQY_I:11

### What browser do you use?

Google Chrome Version 115.0.5790.110 (Official Build) (64-bit)

### Additional information

_No response_

### Are you sure this is a bug report?

- [X] I confirm this is a bug report

[dstrukt]

Very strange bug, definitely created many categories during testing and never had an issue...