Today fish pushes/pops kitty progressive enhancements everytime control is
transfered to/from fish. This constitutes a regression relative to 3.7.1:
$ fish
$ ssh somehost fish
(network disconnect, now we missed our chance to pop from the stack)
$ bash # or some ncurses application etc
(keyboard shortcuts like ctrl-p are broken)
When invoking bash, we pop one entry off the stack but there is another one.
There seems to be a simple solution: don't use the stack but always reset
the current set of flags. Do that since I did not find a strong use case
for using the stack[1] (Note that it was recommended by terminal developers
to use the stack, so I might be wrong).
Note that there is still a regression if the outer shell is bash.
[1]: https://github.com/kovidgoyal/kitty/issues/7603#issuecomment-2256949384Closes#10603
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