message: fix(runtime-c-api) `wasmer_instance_context_data_set` does nothing if `instance` is null.
diff: @@ -428,8 +428,13 @@ pub extern "C" fn wasmer_instance_context_data_set(
  instance: *mut wasmer_instance_t,
  data_ptr: *mut c_void,
  ) {
  - let instance_ref = unsafe { &mut *(instance as *mut Instance) };
  - instance_ref.context_mut().data = data_ptr;
  + if instance.is_null() {
  + return;
  + }
  +
  + let instance = unsafe { &mut *(instance as *mut Instance) };
  +
  + instance.context_mut().data = data_ptr;
  }
  /// Gets the memory within the context at the index `memory_idx`.
  