Question How do you clear a scene and keep your assetbundles from unloading?

I'm using WebGL and my loaded assetBundle becomes null after I Load a new scene. I want it to reload the scene to clear it as suggested in this thread
https://forum.unity.com/threads/any-way-to-reset-the-scene.23986/
but keep my assetbundles so I can instantiate objects from them, but when I load the scene to clear the project the assetbundles are unloaded.

In the console.log I get these lines when clearing and loading a new scene.
Unloading 5 Unused Serialized files (Serialized files now loaded: 1)
Unloading 255 unused Assets to reduce memory usage.
And when I try to instantiate something from the previously loaded assetbundle the assetbundle is now null.

using LoadSceneMode.Additive will not clear the scene -- I don't want to load the same scene over an existing scene because that will duplicate scene items.

Is there a way to clear a scene by reloading it and keep the asset bundle that you already loaded?