bug#55451: 28.1.50; Executing (jit-lock-mode -1) does not disable jit-lock-mode

[Lars Ingebrigtsen]

Ihor Radchenko <yantar92@gmail.com> writes:

> However, I am confused why it is impossible to follow +1/-1 convention.
> Looking through jit-lock.el I do not see any place where any value other
> than non-nil/nil is considered.

It would be incompatible -- all non-nil values switch jit-lock on
presently, including -1.

It's pretty unlikely that anybody's using -1 to switch it on, though.

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