This problem may be related to other settings that don't stick, or it may be
that calc is "too intelligent" to allow fractions with denumerator >
denominator. This is what's the matter:
I want a column of superparticular fractions. To get them, you delete the #
character from the format code of fractions and leave only the ? in a number as
required for accuracy. Clicking on the green tick should save this setting as a
custom format. However, with the file saved, exited and reopened, there is no
format without # to be found, and the column is shown with whole number and
denumerator < denominator.
Even if everybody else considers superparticulars odd, useless, medieval of
whatever, user formats should stick if they can be defined in the first place.
Detected in 1.01, verified in RC2.