Created attachment 165735 [details]
Demonstration of field behavior editing numerical numbers

SUMMARY
(I would assume this is a QT 6 bug, however I don't have the technical understanding to confirm so filing this where I encountered the issue)

When editing the Pointer Speed field, and typing in numbers, it changes the number as you're typing, making it difficult to type in a specific number you want. The two scenarios are as soon as you end up with a -0 in the field, it will reset the field immediately back to 0, even if your intent was to change to a different negative floating point 0 number. The second scenario is when adding back a floating point number, the first number you add it will immediately append a zero to, making it difficult to put in the two levels of sensitivity expected in this field.


STEPS TO REPRODUCE
1. Open System Settings
2. Select Mouse & Touchpad
3. Select Mouse and choose your mouse device
4. In the Pointer speed text bad, click into the box
5. Delete the last 2 digits (for example, if the number is -0.40, select it and delete the 0 and then the 4)
6. Observe the negative sign is immediately removed from the number, meaning you can't simply type a new number to choose a different negative number if that was your intent.
7. Now, select it and try to change the sensitivity to -0.23
8. Notice when you type in the 2, it immediately appends a zero to become -0.20, so you need to delete the zero to then add the 3 to be become -0.23

OBSERVED RESULT
The number in the field is consistently evaluated and overridden by a different value even when the user is actively typing in the field

EXPECTED RESULT
When I am actively typing in a field, the number should not be changed by the system which interrupts my ability to type the number I want.

SOFTWARE/OS VERSIONS
Linux/KDE Plasma: 6.7.4-arch1-1 EndeavourOS
(available in About System)
KDE Plasma Version: 5.93.0
KDE Frameworks Version: 5.249.0
Qt Version: 6.7.0

ADDITIONAL INFORMATION