diff --git a/htdocs/core/actions_massactions.inc.php b/htdocs/core/actions_massactions.inc.php
index d704d9974f9..c2d1f7344c4 100644
--- a/htdocs/core/actions_massactions.inc.php
+++ b/htdocs/core/actions_massactions.inc.php
@@ -776,7 +776,9 @@ if ($massaction == 'confirm_createbills') {   // Create bills from orders.
 						}
 
 						$objecttmp->context['createfromclone'];
+
 						$rankedLine = ($nbOrders > 1) ? -1 : $lines[$i]->rang;
+
 						$result = $objecttmp->addline(
 							$desc,
 							$lines[$i]->subprice,
diff --git a/htdocs/core/class/extrafields.class.php b/htdocs/core/class/extrafields.class.php
index 5fc162634a8..c673f1e9174 100644
--- a/htdocs/core/class/extrafields.class.php
+++ b/htdocs/core/class/extrafields.class.php
@@ -1950,7 +1950,7 @@ class ExtraFields
 				if (!empty($onlykey) && $onlykey != '@GETPOSTISSET' && $key != $onlykey) {
 					continue;
 				}
-				if (!empty($onlykey) && $onlykey == '@GETPOSTISSET' && !GETPOSTISSET('options_'.$key) && $this->attributes[$object->table_element]['type'][$key] != 'boolean') {
+				if (!empty($onlykey) && $onlykey == '@GETPOSTISSET' && !GETPOSTISSET('options_'.$key) && (! in_array($this->attributes[$object->table_element]['type'][$key], array('boolean', 'chkbxlst')))) {
 					//when unticking boolean field, it's not set in POST
 					continue;
 				}
diff --git a/htdocs/core/modules/modResource.class.php b/htdocs/core/modules/modResource.class.php
index da1fdcbf016..eb237702c93 100644
--- a/htdocs/core/modules/modResource.class.php
+++ b/htdocs/core/modules/modResource.class.php
@@ -239,22 +239,26 @@ class modResource extends DolibarrModules
 		$this->export_code[$r] = $this->rights_class.'_'.$r;
 		$this->export_label[$r] = "ResourceSingular"; // Translation key (used only if key ExportDataset_xxx_z not found)
 		$this->export_permission[$r] = array(array("resource", "read"));
-		$this->export_fields_array[$r] = array('r.rowid'=>'IdResource', 'r.ref'=>'ResourceFormLabel_ref', 'c.code'=>'ResourceTypeCode', 'c.label'=>'ResourceType', 'r.description'=>'ResourceFormLabel_description', 'r.note_private'=>"NotePrivate", 'r.note_public'=>"NotePublic", 'r.asset_number'=>'AssetNumber', 'r.datec'=>"DateCreation", 'r.tms'=>"DateLastModification");
+
+		$this->export_fields_array[$r] = array('r.rowid'=>'IdResource', 'r.ref'=>'ResourceFormLabel_ref', 'c.rowid'=>'ResourceTypeID', 'c.code'=>'ResourceTypeCode', 'c.label'=>'ResourceTypeLabel', 'r.description'=>'ResourceFormLabel_description', 'r.note_private'=>"NotePrivate", 'r.note_public'=>"NotePublic", 'r.asset_number'=>'AssetNumber', 'r.datec'=>"DateCreation", 'r.tms'=>"DateLastModification");
 		$this->export_TypeFields_array[$r] = array('r.rowid'=>'List:resource:ref', 'r.ref'=>'Text', 'r.asset_number'=>'Text', 'r.description'=>'Text', 'c.code'=>'Text', 'c.label'=>'List:c_type_resource:label', 'r.datec'=>'Date', 'r.tms'=>'Date', 'r.note_private'=>'Text', 'r.note_public'=>'Text');
 		$this->export_entities_array[$r] = array('r.rowid'=>'resource', 'r.ref'=>'resource', 'c.code'=>'resource', 'c.label'=>'resource', 'r.description'=>'resource', 'r.note_private'=>"resource", 'r.resource'=>"resource", 'r.asset_number'=>'resource', 'r.datec'=>"resource", 'r.tms'=>"resource");
+
 		$keyforselect = 'resource';
 		$keyforelement = 'resource';
 		$keyforaliasextra = 'extra';
+
 		include DOL_DOCUMENT_ROOT.'/core/extrafieldsinexport.inc.php';
 
 		$this->export_dependencies_array[$r] = array('resource'=>array('r.rowid')); // We must keep this until the aggregate_array is used. To add unique key if we ask a field of a child to avoid the DISTINCT to discard them.
 		$this->export_sql_start[$r] = 'SELECT DISTINCT ';
 		$this->export_sql_end[$r]  = ' FROM '.MAIN_DB_PREFIX.'resource as r';
-		$this->export_sql_end[$r] .= ' LEFT JOIN '.MAIN_DB_PREFIX.'c_type_resource as c ON c.rowid=r.fk_code_type_resource';
+		$this->export_sql_end[$r] .= ' LEFT JOIN '.MAIN_DB_PREFIX.'c_type_resource as c ON c.code = r.fk_code_type_resource';
 		$this->export_sql_end[$r] .= ' LEFT JOIN '.MAIN_DB_PREFIX.'resource_extrafields as extra ON extra.fk_object = r.rowid';
 		$this->export_sql_end[$r] .= ' WHERE r.entity IN ('.getEntity('resource').')';
 
 
+
 		// Imports
 		//--------
 		$r = 0;
diff --git a/htdocs/variants/class/ProductCombination.class.php b/htdocs/variants/class/ProductCombination.class.php
index 986d3c3e7e8..22ba9f938e1 100644
--- a/htdocs/variants/class/ProductCombination.class.php
+++ b/htdocs/variants/class/ProductCombination.class.php
@@ -608,6 +608,10 @@ class ProductCombination
 		$prodcomb2val = new ProductCombination2ValuePair($this->db);
 		$prodcomb = new ProductCombination($this->db);
 
+		$features = array_filter($features, function ($v) {
+			return !empty($v);
+		});
+
 		foreach ($features as $attr => $attr_val) {
 			$actual_comp[$attr] = $attr_val;
 		}