The only place where that string is used is here: https://github.com/joomla/joomla-cms/blob/5.0-dev/libraries/src/Form/Field/SchemaorgComponentSectionsField.php#L52

As one can see, the language string JSCHEMAORG_FIELD_COMPONENT_SECTIONS_TEXT contains only one positional parameter, but the sprintf is called with 2 parameters. This is definitely wrong.

The PHP code mentioned above was obviously copied from here: https://github.com/joomla/joomla-cms/blob/5.0-dev/libraries/src/Form/Field/WorkflowComponentSectionsField.php#L62

The corresponding language string is JWORKFLOW_FIELD_COMPONENT_SECTIONS_TEXT="%1$s: %2$s".

So either we fix the string JSCHEMAORG_FIELD_COMPONENT_SECTIONS_TEXT to be like the one for workflows, or we fix the call to it so it uses only one parameter. But in the latter case it would not need the JSCHEMAORG_FIELD_COMPONENT_SECTIONS_TEXT string at all.

go for the latter or we swap one useless string for another useless string

see #42867