Properly handle child zygote

Close #4720

native/jni/zygisk/hook.cpp

@@ -267,6 +267,10 @@ void HookContext::nativeSpecializeAppProcess_post() {
         run_modules_post();
         if (info.is_magisk_app) {
             setenv("ZYGISK_ENABLED", "1", 1);
+        } else if (args->is_child_zygote && *args->is_child_zygote) {
+            // If we are in child zygote, unhook all zygisk hooks
+            // Modules still have their code loaded and can do whatever they want
+            unhook_functions();
         }
     }
     g_ctx = nullptr;