From #3047 (comment):
Aaaaaaaaaaah! It seems in our rebasing we missed parts of 8ab980b.
fish_mode_prompt in 2.3.0 still checks $__fish_vi_mode, but the functions don't set it anymore. The easiest workaround is probably set -g __fish_vi_mode 1.
In case we do a stable release based on the Integration_2.3.0 branch that one should definitely be included. If it's instead based on master this is already fixed.
Sorry!
For 2.3.1 release:
From #3047 (comment):
Aaaaaaaaaaah! It seems in our rebasing we missed parts of 8ab980b.
fish_mode_prompt in 2.3.0 still checks $__fish_vi_mode, but the functions don't set it anymore. The easiest workaround is probably set -g __fish_vi_mode 1.
In case we do a stable release based on the Integration_2.3.0 branch that one should definitely be included. If it's instead based on master this is already fixed.
Sorry!
For 2.3.1 release: