TYPO3 Core

I extend the site configuration with custom fields like Google TagManager ID etc, stuff that you previously used to put in some site specific constants.
When i access this value via TS however, i get a warning in the log if the value is not set. This might very well happen in multidomain setups when not each site has the same config.

Example:

page {
  meta {
    facebook-domain-verification.data = site:facebookDomainVerification

I also can not add an if.isTrue.data since this throws the same warning.

Accessing site: values is the only place in getData that creates a warning, while all other places either fail silently or just output an empty string. So IMHO the behavior should be the same and just return nothing if the value is not set

https://github.com/TYPO3/typo3/blob/f824c51cc1/typo3/sysext/frontend/Classes/ContentObject/ContentObjectRenderer.php#L4284