* client: ignore restart issued to terminal allocations
This PR fixes a bug where issuing a restart to a terminal allocation
would cause the allocation to run its hooks anyway. This was particularly
apparent with group_service_hook who would then register services but
then never deregister them - as the allocation would be effectively in
a "zombie" state where it is prepped to run tasks but never will.
* e2e: add e2e test for alloc restart zombies
* cl: tweak text
Co-authored-by: Tim Gross <tgross@hashicorp.com>
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Co-authored-by: Tim Gross <tgross@hashicorp.com>
