## Fix: Preserve Helix mode when using search
### Problem
When using `buffer search: deploy` in Helix mode, pressing Enter to
dismiss the search incorrectly returned to Vim NORMAL mode instead of
Helix NORMAL mode.
### Root Cause
The `search_deploy` function was resetting the entire `SearchState` to
default values when buffer search: deploy was activated. Since the
default `Mode` is `Normal`, this caused `prior_mode` to be set to Vim's
Normal mode regardless of the actual mode before search.
### Solution
Modified `search_deploy` to preserve the current mode when resetting
search state:
- Store the current mode before resetting
- Reset search state to default
- Restore the saved mode to `prior_mode`
This ensures the editor returns to the correct mode (Helix NORMAL or Vim
NORMAL) after dismissing buffer search.
### Settings
I was able to reproduce and then test the fix was successful with the
following config and have also tested with vim: default_mode commented
out to ensure that's not influencing the mode selection flow:
```
"helix_mode": true,
"vim_mode": true,
"vim": {
"default_mode": "helix_normal"
},
```
This is on Kubuntu 24.04.
The following test combinations pass locally:
- `cargo test -p search`
- `cargo test -p vim`
- `cargo test -p editor`
- `cargo test -p workspace`
- `cargo test -p gpui -- vim`
- `cargo test -p gpui -- helix`
Release Notes:
- Fixed Helix mode switching to Vim normal mode after using `buffer
search: deploy` to search
Closes#36872