handleSaveDesc and handleAutoDescribe both set their loading flag in a
try block but always cleared it unconditionally in finally. When a user
opened profile A's description editor, clicked Save, then quickly
switched to profile B's editor and saved, profile A's resolving request
would clear descSaving/describing while profile B's request was still
in-flight, making the "Saving…" indicator disappear prematurely.
Track concurrent in-flight counts with descSavingCount and
describingCount refs (mirrors the existing activeDescRequest guard
pattern). The loading flag is cleared only when the counter reaches
zero, i.e. all overlapping requests have settled.
de370fd10f