Possible bug using | at end of element of list:string

[Scott Hunter]

Suppose I have a list:string field, and I put `A|B` in for one of the elements.  This works as expected, and gets represented internally as `|A||B|`.

Now suppose I break that up into 2 elements: `A|` followed by `B`.  When I submit the form (a smart grid, in my case), it comes back with a single element: `A||B`, with the internal representation `|A|||B|`.

The same thing happens if the 2 elements as `A` followed by `|B`: single element `A||B`, internally `|A||B|`.

This looks like a bug to me, but thought I'd check here first.  I'm using v2.16.1 under python2.7 on MacOS 10.12.6

- Scott

[Anthony]

Looks like a bug -- I submitted an issue: https://github.com/web2py/pydal/issues/504

Anthony

[Massimo Di Pierro]

I agree this is a bug. The problem is that this means our internal representation is ambiguous. We cannot fix this without changing the internal representation and breaking backward compatibility.

Will think of a solution. Thanks for catching this.