for (Map.Entry<String, AccessPermission> entry : permissions.entrySet()) {
String registrant = entry.getKey();
AccessPermission ap = entry.getValue();
String source = null;
boolean mutable = true;
PermissionType pType = PermissionType.EXPLICIT;
if (isMyPersonalRepository(registrant)) {
pType = PermissionType.OWNER;
ap = AccessPermission.REWIND;
mutable = false;
} else if (StringUtils.findInvalidCharacter(registrant) != null) {