As per title, I think when creating a new brush preset in the brush editor, the new brush should become active in the editor once created.
When I want to create a new variation of a brush, I’ll typically select an existing preset as a base, and immediately create a new version to edit, to make sure I don’t accidentally overwrite an existing preset. The problem is, the after saving as a new preset, the old preset is still active. This was not very obvious to me, and if I forget, I tend to spend a lot of time tweaking the old preset, only to later realize that I’m not editing the brush I intended to edit.