Dispose of cached browse config on dispose if no longer registered. (#10608)

Author: Colengms

Extension/src/LanguageServer/configurations.ts

@@ -2132,6 +2132,16 @@ export class CppProperties {
     }
 
     dispose(): void {
+        if (this.lastCustomBrowseConfigurationProviderId !== undefined) {
+            const config: Configuration | undefined = this.CurrentConfiguration;
+            if (config !== undefined && config.configurationProvider !== this.lastCustomBrowseConfigurationProviderId.Value) {
+                this.lastCustomBrowseConfigurationProviderId.Value = undefined;
+                if (this.lastCustomBrowseConfiguration !== undefined) {
+                    this.lastCustomBrowseConfiguration.Value = undefined;
+                }
+            }
+        }
+
         this.disposables.forEach((d) => d.dispose());
         this.disposables = [];