ORA-38856 - while opening a cloned RAC database

I was attempting to open a cloned RAC database and got the following error:

SYS@NETFRD1> alter database open resetlogs;
alter database open resetlogs
*
ERROR at line 1:
ORA-38856: cannot mark instance UNNAMED_INSTANCE_2 (redo thread 2) as enabled

The fix was to use the undocumented parameter - _no_recovery_through_resetlogs=TRUE to open the database. I guess this is one of those scenarios where Oracle suggests using this undocumented/unsupported parameter. Here is what I did to get pass the problem:

1. Shutdown;
2. Startup mount (with the parameter _no_recovery_through_resetlogs=TRUE set in init.ora)
3. Open the database with RESETLOGS;

SYS@NETFRD1> alter database open resetlogs;
alter database open resetlogs
*
ERROR at line 1:
ORA-38856: cannot mark instance UNNAMED_INSTANCE_2 (redo thread 2) as enabled


SYS@NETFRD1> shutdown immediate;
ORA-01109: database not open


Database dismounted.
ORACLE instance shut down.
SYS@NETFRD1> !vi /tmp/init$ORACLE_SID.ora

SYS@NETFRD1> startup mount pfile=/tmp/init$ORACLE_SID.ora
ORACLE instance started.

Total System Global Area 1577058304 bytes
Fixed Size 2084232 bytes
Variable Size 385876600 bytes
Database Buffers 1174405120 bytes
Redo Buffers 14692352 bytes
Database mounted.
SYS@NETFRD1> alter database open resetlogs;

Database altered.