quick fix to prevent dates whose 4 letters year starts with 0 to be considered…

quick fix to prevent dates whose 4 letters year starts with 0 to be considered valid on new member inscription

members/static/js/prepa_odoo.js

@@ -279,6 +279,10 @@ function save_current_coop(callback) {
                 if ((date_test.getDate() !== parseInt(jj)) || ((date_test.getMonth()+1) !== parseInt(mm)) || (date_test.getFullYear() !== parseInt(aaaa)) || !date_test.isValid()) {
                     birthdate_error = true;
                 }
+                // do not allow years starting with a 0 as it causes bugs later in odoo
+                if (aaaa < 1000) {
+                    birthdate_error = true;
+                }
             } catch (Exception) {
                 birthdate_error = true;
             }