bug#29924: [PATCH] Preserve special abbrev properties when writing

[Noam Postavsky]

Allen Li <vianchielfaura@gmail.com> writes:

>> I think it would be helpful to have a basic test to ensure we preserve
>> round-tripping.
>
> What round-tripping are you referring to?

I meant writing the abbrevs out and then reading them back again should
end up with the same set of abbrevs, which should make a good test case.