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0ae928e050
`routeAdvertiser` is the `iplocal.LocalBackend`. Calls to `Advertise/UnadvertiseRoute` end up calling `EditPrefs` which in turn calls `authReconfig` which finally calls `readvertiseAppConnectorRoutes` which calls `AppConnector.DomainRoutes` and gets stuck on a mutex that was already held when `routeAdvertiser` was called. Make all calls to `routeAdvertiser` in `app.AppConnector` go through the execqueue instead as a short-term fix. Updates tailscale/corp#25965 Signed-off-by: Andrew Lytvynov <awly@tailscale.com> Co-authored-by: Irbe Krumina <irbe@tailscale.com>