Repvfy upgrade failing with unique constraint (SYSMAN.EM_DIAG_REP_EXT_PK) violated
We have upgraded repvfy many times over the years but came across a failure for the first time today, upgrading from 20.12.02 to 21.12.21.
SR has been raised but wondered if anyone else come across this?
OMS version is 13c Release 4 Platform Update 6
Repository database is 12.1.0.2.0
[]# ./repvfy upgrade
..........................
...........................
Commit complete.
1 - CORE
BEGIN
*
ERROR at line 1:
ORA-00001: unique constraint (SYSMAN.EM_DIAG_REP_EXT_PK) violated
ORA-06512: at "SYSMAN.GC_DIAG_EXT", line 945
ORA-06512: at line 70
Disconnected from Oracle Database 12c Enterprise Edition Release 12.1.0.2.0 - 64bit Production