Sam Minnee 0fc06e51e5 FIX: Drop seconds from DBDatetime::Nice() to restore SS3 behaviour.
Note that the medium date format depends on locale, with en_NZ being
resolutely numeric. I’ve updated the test to verify a couple of locales
to make this more obvious.

Fixes #8121
2018-10-04 14:51:24 +13:00
..
2018-10-03 15:28:05 +02:00
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