Why does Apple keep uninstalling Command Line Tools with every update?

So, I'm installing the Big Sur betas.
With every beta, some Apple process uninstalls (or deletes) CommandLineTools (CLT).

Yesterday, my system looked like this:

Code Block 
Xcode: 12.4.0.0.1.1610135815
CommandLineTools: 12.4.0.0.1.1610135815

Today - prior to installing the latest beta, 11.3 beta 8, I checked for the existence of CLT. CLT was gone.

Code Block 
Xcode: 12.4.0.0.1.1610135815
CommandLineTools: not installed

1) Why is this happening?
2) Is there a way to prevent this?

After the beta is installed, I simply reinstall the same CLT I had previously.

.