A nested VM was written as « Host erplibre-ubuntu-2404
test-vm_02+erplibre-ubuntu-2404 » — two patterns on one Host line. Valid ssh
syntax, but the short name only repeats the tail of the chain and buys
nothing, so it is gone. Nested hosts now carry the chained name alone.
Existing configs repair themselves: replacing a block drops any whose name
list intersects the new one, so the old two-name line is removed as a whole
and rewritten with the single chained name — no stale short entry left behind.
Verified on a config holding exactly the reported line, alongside an unrelated
host that must survive.
The naming rule is simpler too: a chain cannot collide with another machine,
so there is no case left where a short name has to be preferred or avoided.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Mathieu Benoit
32d25b5344