bug#70038: 29.3.50; Shift up/down in buffer with images on M-x other-window with some fonts

[martin rudalics]

>> Would that be sufficient?  Don't we freeze also when resizing the echo
>> area?
>
> I guess we do, but where is that resized back to its normal height?

In shrink_mini_window hopefully so this should be covered.  If the only
problem is that of restore_window_configuration, then minibuffer_unwind
looks like the right place.  But maybe read_char_help_form_unwind would
require the same treatment.

martin