Description of problem: If you install on a regular partition of an LVM logical-volume, you can can reuse an existing definition and simply reformat it. This does not work for btrfs because reformatting a btrfs subvolume really has no meaning but having the same functionality would be useful. Therefore, this is an RFE to implement that. Specifically, the request is to add some new kickstart parameter such as "--reuse" which will result in the specified (named) subvolume being deleted and then reallocated. The primary use for this will be for root ("/"). I am specifying "rawhide" rather than a specific release since this should continue until satisfied.
Still true as of this date. I have a pair of patches for pykickstart and anaconda which adds the "--reclaim" option for a btrfs --subvol so that, if a named subvol exists, it will be deleted before being re-allocated. The patches have been submitted to anaconda-patches.
There have been numerous exhaustive discussions on mailing lists about why this is not necessary or acceptable from the maintainer's POV.