5_10 and 2_2A and 2_3A - limitation for 2way - no move

for now for simplicity for 2way the delete, add differences are not converted to move, but it is done for 3way

thats because 5_10 both 2 way unit tests fail but 3way success with diffmodel with move differences instead of delete,add

same for 2_2 and 2_3 move delete, thats why only 2way A-base is failing because of this issue

Start by running the failing 2-way unit tests for 5_10, 2_2A, and 2_3A, then compare them with the successful 3-way DiffModel cases mentioned in the issue. Trace the existing move-versus-delete/add handling; done means the 2-way A-base cases pass without regressing 3-way behavior.

Written by the indexing model from the issue text.