File size update in write doesn't respect seek position

[CBJamo]

At controller#L577 the file size is increased unconditionally. This means that if you've seek-ed back into the file you'll bloat the end of the file with 0s.

[eldruin]

Any ideas on this @thejpster?

[thejpster]

They're right, sounds like a bug. You need to calculate how much you've extended the file by.

let new_size = current_pos + amount_written;
if new_size > current_size {
    store(new_size)
}