refactor: use cache, only if previously built

Signed-off-by: Bart Jaskulski <bjaskulski@protonmail.com>

src/Kernel.php

@@ -86,12 +86,14 @@ final class Kernel {
 
 	private function initialize_container( Plugin $plugin ): Container {
 		$original_builder = new DiBuilder();
+
+		// If there's a cache file, use it as we are in production environment.
+		// Otherwise, build the container from scratch and use live version, without compilation.
+		if ( file_exists( $this->get_cache_path( $this->get_container_name( $plugin ) . '.php' ) ) ) {
 			$original_builder->enableCompilation(
 				$this->get_cache_path(),
 				$this->get_container_name( $plugin )
 			);
-
-		if ( file_exists( $this->get_cache_path( $this->get_container_name( $plugin ) . '.php' ) ) ) {
 			return $original_builder->build();
 		}