[sqlite] Assert on pager state when using zipvfs

[Alexandre Mainville]

Hi,

Were are getting the following assert inside the
sqlite3PagerWalFramesize when using zipvfs:
assert( pPager->eState==PAGER_READER );

Is this expected?

Here are the steps to reproduce:
begin transaction;
create table test(id int, name text);
insert into test values(<number>, <text>); (I inserted a 100 rows like this)
commit;
delete from test where name like 'whatever';

I attached the resulting file.

Thanks

Alex