Clearing cache problem

[ghost]

I'm creating a discussion not an issue because I'm not sure if this is a bug or feature ot I'm missing something.
Rector has --clear-cache option. It clears a cache but it looks like it also does not save current run into cache. What I mean is the difference between clear-cache and no-cache. The first I understand Clear cache at the beginning. Just analyze all the files but in the end save them to cache. Te second I understand Do not use cache. Ignore it. Always analyze all the files.
If I am right then right now it is not possible to clear the cache on the run 1 and use cache on run 2, i.e.

bin/rector process --clear-cache
bin/rector process # this will run on all files

PHPStan solves this problem in a way that it has separate clear-result-cache command and no clear-cache or similiar option.