When duplicating parts use numbers instead of repetition of (copy) in the part name

Issue type

UX/Interaction bug (incorrect behaviour)

Description with steps to reproduce

1. open the Parts menu of any score
2. select a part and duplicate it 9 times

Expected behaviour: the ninth copy has a name like [Instrument] - copy 9
Actual behaviour: the ninth copy has this name: [Instrument] (copy) (copy) (copy) (copy) (copy) (copy) (copy) (copy) (copy)

The actual behaviour has a problem: you have a limited number of characters in the name field. This creates the incorrect behaviour in the screen recording.

Supporting files, videos and screenshots

https://github.com/user-attachments/assets/23be09d7-8fff-4816-a0c6-ff83ac86b7ce

What is the latest version of MuseScore Studio where this issue is present?

OS: Windows 10 Version 2009 or later, Arch.: x86_64, MuseScore Studio version (64-bit): 4.4.4-243461245, revision: github-musescore-musescore-2232670

Regression

I was unable to check

Operating system

Windows 10 Pro

Additional context

No response

Checklist

• This report follows the guidelines for reporting bugs and issues
• I have verified that this issue has not been logged before, by searching the issue tracker for similar issues
• I have attached all requested files and information to this report
• I have attempted to identify the root problem as concisely as possible, and have used minimal reproducible examples where possible

Start by reproducing the issue from the Parts menu in a score, duplicating one part nine times on the reported MuseScore Studio version. Trace the part-name generation used during duplication; done means the ninth copy uses a numbered name such as “[Instrument] - copy 9” without repeated “(copy)” text or exceeding the name field limit.