It does not seem possible to return in modification on Timeline: blank page on .../manager/timeline.
After research it seems that the variable $end_year has a too important value ($end_year = 124944).
I don't know where it comes from but the patch below avoid that
Code: Select all
$years = range((int)$start_year, (int) $end_year );
$years = range((int)$start_year, (int)min($end_year,$start_year+20));