When starting to edit a text element via keyboard, select the entire contents

Issue type

UX/Interaction bug (incorrect behaviour)

Description with steps to reproduce

1. Select a text element (i.e. staff text or the score title)
2. Use a shortcut (i.e. Shift + Enter) to enter text editing mode
3. See that the cursor is at the beginning of the text

The text should be selected instead.

Supporting files, videos and screenshots

https://github.com/user-attachments/assets/c21906b4-017e-4c6d-b9f5-6f3da441b72d

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

4.5

Regression

No.

Operating system

macOS 15

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 tracing the keyboard shortcut path into text editing mode for staff text and score titles, then inspect how the initial cursor position is set. Reproduce the issue on the reported interaction and verify that entering editing mode selects the entire existing text instead of placing the cursor at its beginning.