ods: format glitch in ods-strict-conformance save - re-load roundtrip
A cell formatted as 'Scientific - Always show exponent sign' - picture 1,
comes back formatted as 'Scientific - Use superscript' - picture 2,
from a save and re-load roundtrip in 'ODF 1.2 strict conformance (*.ods)' format, extended conformance roundtrips correctly.
tested with ver. 1.12.50 and 1.12.53, regularly reproducible.