TableAcl: hide input in edit form for geom fields

SE/se-lib/TableAcl.php

@@ -479,6 +479,9 @@ class TableAcl {
 			unset($html->attrs['type']);
 			unset($html->attrs['value']);
 		}
+		else if ('polygon' == $colType['type']) {
+			return '...';
+		}
 		else {
 			echo'unknown Type "'.$colType['type'].'"';
 		}