Error "Source is defined in line nn with a horizontal partitioning scheme and a horizontally partitioned table may be defined only once" (4301967)

The following errors are observed when adding a second partition scheme for a table involved in Horizontal Partitioning and activating again:

Warning  2015-01-14 16:00:17.756000 5100 3392 Activation: Skipping duplicate entry for "OWNER"."SOURCETABLE" in line 57 - Source is defined in line 56 with a horizontal partitioning scheme and a horizontally partitioned table may be defined only once.  (activating sid sourceSID) [module ocf]

The partition scheme fails to take effect though the earlier Horizontal Partitioning associated with the table are still valid.