Claus Lensbøl 61c95f409c
control/controlclient: accept key if last seen on exist node is absent (#19402)
On some nodes (found via natlab), the existing nodes last seen could be
unset. For these cases, we would want to accept the key and write a last
seen. This was breaking the cached netmap natlab tests.

Updates #12639

Signed-off-by: Claus Lensbøl <claus@tailscale.com>
2026-04-15 03:53:40 -04:00
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