Example: OCM differs by additional element
Source OCM Destination OCM
A {1,1} (,) A {1,1} (,)
B {1,1} (|) X {1,1} (|)
#text #text
C {1,1} (|) B {1,1} (|)
#text #text
C {1,1} (|)
#text
This operation fails.