Add fallback only updates local editor state; complete pairs are filtered
before onChange. The post-#7b5ba205 resync effect then saw the unchanged
persisted chain and wiped the draft — button looked dead.
Ignore value updates that match the last chain we emitted; still resync
on real external changes (profile/config reload).
Co-authored-by: HexLab98 <liruixinch@outlook.com>
Brooklyn Nicholson
3615545bca