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d78f57e94a
In a rolling upgrade, nodes that weren't upgraded yet will not recognize
the new tablet_resize_finalization state, that serves both split and
merges, leading to a crash. To fix that, coordinator will pick the
old tablet_split_finalization state for serving split finalization,
until the cluster agrees on merge, so it can start using the new
generic state for resize finalization introduced in merge series.
Regression was introduced in e00798f.
Fixes #22840.
Reported-by: Tomasz Grabiec <tgrabiec@scylladb.com>
Signed-off-by: Raphael S. Carvalho <raphaelsc@scylladb.com>
Closes scylladb/scylladb#22845