Op: change id's parent, inverting back to the prior parent.
id
coalesceKey defaults to reparent:${id} so successive reparents of the same id batch-merge cleanly.
coalesceKey
reparent:${id}
Op: change
id's parent, inverting back to the prior parent.coalesceKeydefaults toreparent:${id}so successive reparents of the same id batch-merge cleanly.