[TYPO3-calendar] ###image### marker bug

[Pierre Lamoureux]

PHP Error: Argument 3 passed to TYPO3\CMS\Frontend\Page
\PageRepository::getFileReferences() must be of the type array, null 
given, called in /usr/share/typo3/typo3_src-6.2.9/typo3/sysext/frontend/
Classes/ContentObject/FilesContentObject.php on line 317 and defined. 
(more or less related to #60759)

The generic error is that in FilesContentObject.php (sysext/frontend/
classes/ContentObject): On some condition, in 
FilesContentObject::handleFileReference will attemp to reload the source 
record from database. If the (table,field,uid) send do not resolve or any 
other database error will result in a null value for the third argument 
of PageRepository::getFileReference call. The database call result is not 
tested. A fix is suggest for FilesContentObject.php in #60759 but it's 
only mask the source problem.

Context:
	Typo3 6.2.9
	CAL 1.7.0
	CAL Organizer data model: frontend users
	note: The site is a migration from TYPO3 4.5 to TYPO3 6.2.9

The ###image### marker search for the image in database table 
tx_cal_organizer when it's in fe_users table. 

I have correct that part with following TS in my template setup. But it 
should be move to the configuration of the extension and set when user 
choose the frontend users as model organizer.

plugin.tx_cal_controller.view.organizer.organizer.image.preRenderRegisters.
allImageCaptions.cObject.references.table =fe_users

The PHP Error is clear, but the image does not resolve anyway. The 
PageRepository::getFileReference try to find the image with a complex 
call to sys_file_reference table when the image name is plain text in 
fe_users image field.

Somebody have any clue ?