Keytab getting saved but in edit the saved keytab is not shown. seems to be display issues.
Another bug is with kerberos client filter. in Kerberos Client Filter -- > Kerberos token profile tab --> choose XPATH location and click finish it ask for actor/role. and if you select current actor/role and then clikc finish. again edit Kerberos client filter --> XPATH Location option is deselected but inturn it stores the value in selected xpath during execution. it seems to be a display bug and it should not ask to select "current actor/role" if you select XPATH as option. please create/update support case along with this.