Unexpected behavior when configuring Run-Ahead/Preemptive frames setup/save.

When Run-Ahead or Preemptive frames is enabled in the main menu, the default value is 1 frame. If I change the value in a game, the default value in the main menu also changes:

• I activate Run-Ahead in the main menu, default to 1.
• I load Mario Bros 1, needs 1, nothing to do.
• I open King of Fighter 98, it needs 5 frames and set them in the quick menu.
• I load Mario Bros again and it defaults to 5.

When I try to save an override, if the required frame value of the game is the same value as the main menu, it doesn't save:

• I activate Run-Ahead in the main menu, defaulting to 1. (If I activate Run-Ahead in the quick menu and save the override, the activation line "true" is also saved, I only need the frame line).
• I open Mario Bros 1, which has 1 frame of latency.
• I try to save the override, and it says "Nothing to save. Overrrides not save."

If I activate Run-Ahead in the main menu and set it to another value, for example 12.
I open any game, change the value to 1 and save.
And I have the file only with the frame line at 1.

Some suggestions.

When activating Run-Ahead/Preemptive frames in the main menu, don't have value. Every time a game is loaded always be at 1, and if a game requires more frames, the override file is saved.

This is useful, because it avoids the above problem and avoids having to create values at 1 (which most classic games are) and only values from 2 onwards are created.

Reproduce the Run-Ahead/Preemptive frames sequences through the main menu, quick menu, and game loading flow. Trace how the frame value is carried into per-game overrides and how the override save decision detects changes; done means the described defaults and save cases behave as intended.