FIX : global $dateSelector isn't the good one, then date selector on...

FIX : global $dateSelector isn't the good one, then date selector on objectline_create tpl was hidden

htdocs/core/tpl/objectline_create.tpl.php

@@ -37,7 +37,7 @@ if (! empty($conf->margin->enabled) && ! empty($object->element) && in_array($ob
     $usemargins=1;
 }
 
-global $dateSelector, $forceall, $senderissupplier, $inputalsopricewithtax;
+global $forceall, $senderissupplier, $inputalsopricewithtax;
 if (empty($dateSelector)) $dateSelector=0;
 if (empty($forceall)) $forceall=0;
 if (empty($senderissupplier)) $senderissupplier=0;