### What?
Fixed client config caching to properly update when switching languages
in the admin UI.
### Why?
Currently, switching languages doesn't fully update the UI because
client config stays cached with previous language translations.
### How?
Created a language-aware caching system that stores separate configs for
each language and only uses cached config when it matches the active
language.
Before:
```typescript
let cachedClientConfig: ClientConfig | null = global._payload_clientConfig
if (!cachedClientConfig) {
cachedClientConfig = global._payload_clientConfig = null
}
export const getClientConfig = cache(
(args: { config: SanitizedConfig; i18n: I18nClient; importMap: ImportMap }): ClientConfig => {
if (cachedClientConfig && !global._payload_doNotCacheClientConfig) {
return cachedClientConfig
}
// ... create new config ...
}
);
```
After:
```typescript
let cachedClientConfigs: Record<string, ClientConfig> = global._payload_localizedClientConfigs
if (!cachedClientConfigs) {
cachedClientConfigs = global._payload_localizedClientConfigs = {}
}
export const getClientConfig = cache(
(args: { config: SanitizedConfig; i18n: I18nClient; importMap: ImportMap }): ClientConfig => {
const { config, i18n, importMap } = args
const currentLocale = i18n.language
if (!global._payload_doNotCacheClientConfig && cachedClientConfigs[currentLocale]) {
return cachedClientConfigs[currentLocale]
}
// ... create new config with correct translations ...
}
);
```
Also added handling for cache clearing during HMR to ensure
compatibility with the existing system.
Fixes#11406
---------
Co-authored-by: Jacob Fletcher <jacobsfletch@gmail.com>