Undo previous merges and return a list of all previously merged instances.
If additional coordinate systems were added after merging two instances, they won’t be lost. Depending on their parent system, they will be kept in one of the returned sub-instances or the current instance. All new systems with the parent system being the shared node of two merged systems are kept in the current instance and won’t be passed to the sub-instances.
A list containing previously merged
- Return type: