Merge branch '1610_vtws_history_unlink' into '7.4.0'

Include unlink information. Refs #1610

Fixes issue raised in #1610.

See merge request !808

include/Webservices/History.php

@@ -95,7 +95,7 @@ function vtws_history($element, $user) {
 	while ($row = $adb->fetch_array($result)) {
 		$orderedIds[] = $row['id'];
         
-        if ($row['status'] === ModTracker::$LINK) {
+        if ($row['status'] === ModTracker::$LINK || $row['status'] === ModTracker::$UNLINK) {
 			$relationOrderedIds[] = $row['id'];
 		} else {
 			$updatesOrderedIds[] = $row['id'];
@@ -200,4 +200,4 @@ function vtws_history_entityIdHelper($moduleName, $id) {
 		$wsEntityIdCache[$moduleName][$id] = vtws_getWebserviceEntityId($moduleName, $id);
 	}
 	return $wsEntityIdCache[$moduleName][$id];
-}
\ No newline at end of file
+}