Clean state icon not shown in Git prompt with informative mode enabled

To reproduce:
```
winter@snowball ~> mkdir r
winter@snowball ~> cd r
winter@snowball ~/r> git init
hint: Using 'master' as the name for the initial branch. This default branch name
hint: is subject to change. To configure the initial branch name to use in all
hint: of your new repositories, which will suppress this warning, call:
hint:
hint: git config --global init.defaultBranch
hint:
hint: Names commonly chosen instead of 'master' are 'main', 'trunk' and
hint: 'development'. The just-created branch can be renamed via this command:
hint:
hint: git branch -m
Initialized empty Git repository in /private/var/folders/t8/009s4fhn3jg9cb224djx3mrh0000gn/T/tmp.sS4Cqj1C/r/.git/
winter@snowball ~/r (master)> git config bash.showInformativeStatus true
winter@snowball ~/r (master)> echo "bar" >> foo
winter@snowball ~/r (master)> git add foo
winter@snowball ~/r (master +1)> git commit -m foo
Author identity unknown

*** Please tell me who you are.

Run

git config --global user.email "you@example.com"
git config --global user.name "Your Name"

to set your account's default identity.
Omit --global to set the identity only in this repository.

fatal: unable to auto-detect email address (got 'winter@snowball.(none)')
winter@snowball ~/r (master +1) [128]> git config --global user.email "you@example.com"
git config --global user.name "Your Name"
winter@snowball ~/r (master +1)> git commit -m foo
[master (root-commit) 7b19037] foo
1 file changed, 1 insertion(+)
create mode 100644 foo
winter@snowball ~/r (master)>
```

Fish v3.5.0, `Darwin snowball 21.5.0 Darwin Kernel Version 21.5.0: Tue Apr 26 21:08:29 PDT 2022; root:xnu-8020.121.3~4/RELEASE_ARM64_T8101 arm64`, `xterm-256color`.

I've confirmed that this occurs in an environment with no customizations, and this did not happen in versions prior to 3.5.0.