UnigramDev/Unigram/chat-preview-teardown • 158f942 • 4 files, +3/-16
Drop the idempotence flag from Deactivate

The handler detaches from both Closed and Unloaded before it tears anything
down, so whichever event arrives first makes the other unreachable and
Deactivate cannot be entered twice from here. The flag was dead, and it
applied to every ChatView rather than the preview - a second Deactivate
elsewhere would have become a silent no-op.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>

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