Cannot upload child entries, missing parent key?

[mirko77]

http://plus.epicollect.net/SETA_demo_v2

when uploading, it gives an error the parent key is missing, but it is there

[antpuleo2586]

This is a major flaw with the way forms are assigned a "num" value in javascript. Reloading the form builder page while still adding forms for example, will reset this num and ordering will be broken.