bug#46552: 27.1; image-mode should not move current point

[Lars Ingebrigtsen]

Eli Zaretskii <eliz@gnu.org> writes:

> It's the "point-adjustment" feature, which moves point out of
> invisible/intangible/display-property/etc text, where we don't want
> the user to see point, ever.  Try setting
> global-disable-point-adjustment non-nil, and you will see what happens
> when this is disabled.

Ah!  Thanks; that fixes the problem.  I've now made `image-mode' set
`disable-point-adjustment' buffer-locally.

>> Anybody got any ideas here?
>
> The point adjustment needs to decide whether to move point before or
> after the display property.  Its logic is based on heuristics that can
> break/change behavior depending on how the command was invoked,
> because it's based on the previous value of point (if point moved
> forward, the logic prefers to adjust point in the forward direction,
> and vice versa).

Right.  It is pretty odd that `M-: (call-interactively
'image-toggle-display)' works differently here than `C-c C-c', but that
what happens with heuristics, I guess.

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