Speech reads last character when at end of string being edited.

Issue type

UI bug

Bug description

No response

Steps to reproduce

When editing title, sub title, composer, tempo marks, lyrics etc, using Left/Right arrow, the speech correctly announces the characters as you arrow along. However, when at the end of the string, speech announces the last character, instead of "blank".

Screenshots/Screen recordings

Example using Project Properties.
Steps:

1. Call up the Project Properties dialog.

2. Focus on the Title field.
   Assume it already contains some text, such as "Test"

3. Press Home to move the cursor to the first character.
   Screen reader says "T" (higher pitch to indicate the capital).

4. Arrow Right three times.
   Speech reads "e", "s" and "t" as expected.

5.Arrow Right once more to move to the end of the string.

Expected behaviour: Speech should say "blank"
Actual behaviour: Speech repeats the last character "t".
This could be confusing, leading people to think there are two "t"s at the end.

Similar behaviour occurs in other editing situations.

MuseScore Version

4.1

Regression

I don't know

Operating system

Windows 10 with NVDA

Additional context

No response