LottieAnimationView's animationLayer not resetted to nil after animation = nil

[ainopara]

I utilize my custom image provider to verify if there are Lottie JSON files that cannot find corresponding images. Additionally, each Lottie animation requires its unique image provider with a specific search path to find the corresponding image.

While attempting to reuse a Lottie animation view to display different Lottie animations, I discovered that changing either the image provider or the animation leads to image reloading. Consequently, the image provider and animation do not match, which triggers my custom image missing alert.

I attempted to resolve this issue by first setting the animation to nil, then changing the image provider, and finally setting the new animation. However, due to LottieAnimationView's animationLayer not being reset to nil after setting animation = nil, the image missing alert is still triggered.

Is it safe to also set animationLayer to nil rather than only remove it from super layer, so that I can avoid the image missing alert triggered unexpectly?

lottie-ios/Sources/Public/Animation/LottieAnimationView.swift

Lines 1100 to 1112 in 43a8c7f

	fileprivate func makeAnimationLayer(usingEngine renderingEngine: RenderingEngineOption) {
	/// Remove current animation if any
	removeCurrentAnimation()
	if let oldAnimation = animationLayer {
	oldAnimation.removeFromSuperlayer()
	}
	invalidateIntrinsicContentSize()
	guard let animation = animation else {
	return
	}

[calda]

That seems reasonable to me @ainopara. Could you open a pull request?

[ainopara]

Sure, #2035