Default missing keys to Unix time 0 (1970-01-01 at 00:00:00 UTC).
Abort if year <= 0, this is not supported by the current algorithm.
Prevents an infinite loop further down.
Fixes #49022.
(cherry picked from commit 62efa30ed2)
Default missing keys to Unix time 0 (1970-01-01 at 00:00:00 UTC).
Abort if year <= 0, this is not supported by the current algorithm.
Prevents an infinite loop further down.
Fixes #49022.
(cherry picked from commit 62efa30ed2)