Every write to the player's selection now signals where 1.12.1 does, inside its packet or call, not from a per-frame diff.
- The attacked and cast-at acquires select inside their packets (`0x6259fe`, `0x6e799c`). SetSelection keeps its order: the usable refresh (`0x493892`), then `PLAYER_TARGET_CHANGED` (`0x49389c`).
- Deselects (`0x493910`) run at their packet's end, on their lane, or inside the call. `CloseLoot` deselects a dead source after the loot session ends (`0x48f33d`, `0x48f369`).
- The server's swing stop and the refusal latch apply inside their packet (`0x625ab8`).
- The control flag is stored in its handler, then LOST or GAINED, then the refresh (`0x4958e0`).
- The feeds' own raises are gone, and a world-less clear fires nothing (`0x4939df`).
Each change has a test that fails without it. flip_readiness falls to 98 rows.
Refs #2168
Refs #2217🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Sam Sung
40b6613f94