If the existing annotation has the same label, it should be merged.
If the label is different, it means there are overlapping labels which are currently not supported. Until support is added, a temporary solution could be to just replace the existing label.
If the existing annotation has the same label, it should be merged. If the label is different, it means there are overlapping labels which are currently not supported. Until support is added, a temporary solution could be to just replace the existing label.