Unclear error when subject isnt correct

I had a subject of form repo:org/repo missing e.g., a :* at the end
the error you get from this action in this case is not very helpful/misleading:

▶️ get tailscale status
Daemon ready! Initial state: NeedsLogin
✅ tailscaled daemon is up and running!
▶️ hostname
Attempt 1 to bring up Tailscale...
▶️ tailscale up
Warning: Tailscale up attempt 1 failed: sudo failed with exit code 1
Retrying in 2 seconds...
Attempt 2 to bring up Tailscale...
▶️ tailscale up
Warning: Tailscale up attempt 2 failed: sudo failed with exit code 1
Retrying in 4 seconds...
Attempt 3 to bring up Tailscale...
▶️ tailscale up
Warning: Tailscale up attempt 3 failed: sudo failed with exit code 1
Retrying in 6 seconds...
Attempt 4 to bring up Tailscale...
▶️ tailscale up
Warning: Tailscale up attempt 4 failed: sudo failed with exit code 1
Retrying in 8 seconds...
Attempt 5 to bring up Tailscale...
▶️ tailscale up
Warning: Tailscale up attempt 5 failed: sudo failed with exit code 1
Error: sudo failed with exit code 1

Start by reproducing the workflow with a subject in the repo:org/repo form that omits the required suffix, then trace where the action reports the failed tailscale up attempt. Done means the malformed subject produces a specific, useful error instead of the repeated generic sudo failed with exit code 1 message.