rowIndex changes

Hello,

I have a custom row select function, as in following plunker: http://plnkr.co/edit/dyof0UiGKtvn0gAWcWuu?p=preview

for the first ~10-15 entries, it works awesome (try rightclicking the entries), but after scrolling, the rowIndex kinda changes. I tried changing cellTemplate to have gridApi.grid.renderContainers.body.visibleRowsCache.indexOf(row) instead of rowIndex, but same error afterwards unfortunately. You guys know some fix for that?

I even gave them an id: ... ui-grid-one-bind-id-grid="rowRenderIndex + '-' + row.entity.id + '-' + col.uid + '-cell'" ...

but even this one changes because scrolling kinda changes only the visible data but not the actual one, or the other way round.

Thank you very much for your help.