Change record status: 
Project: 
Introduced in branch: 
8.x-5.x
Introduced in version: 
8.x-5.2-rc1
Description: 

'0' is no longer considered an empty value by the server-side conditional logic validator.

Client-side conditional logic only considers '' empty strings for empty conditions. Server-side conditional logic now only considers '' empty strings, NULL, or FALSE for empty conditions. NULL and FALSE are supported to prevent any unexpected regressions.

Impacts: 
Site builders, administrators, editors
Module developers