Locator l. 30, getCitationItemById(), Context->citationItems is null for bibliography (OK for citation)

[glorieux-f]

Please follow the general troubleshooting steps first:

• I read the README and followed the instructions.
• I am sure that the used CSL metadata follows the CSL schema.
• I use a valid CSL stylesheet

Bug reports:

PHP Fatal error:  Uncaught Error: Call to a member function filter() on null in …/citeproc-php/src/Context.php:439
Stack trace:
#0 …/citeproc-php/src/Constraint/Locator.php(30): Seboettg\CiteProc\Context->getCitationItemById('ID001')
#1 …/citeproc-php/src/Constraint/AbstractConstraint.php(91): Seboettg\CiteProc\Constraint\Locator->matchForVariable('page', Object(stdClass))

I have not understood the logic. Fast hack, if ($context->isModeCitation()) in Locator.

Used CSL stylesheet:

nouvelles-perspectives-en-sciences-sociales.csl

Used CSL metadata

[
{
"id": "ID001",
"type": "article-journal",
"title": "A title"
}
]