Improper restriction of merge tables during delete in spikesortingv1

[samuelbray32]

Describe the bug
When deleting a subset from SpikeSortingSelection in the v1 pipeline, the delete step attempts to delete all entries from SpikeSortingOutput.CurationV1.

Suspect it's a failure to join and restrict tables correctly during the merge delete due to the remapping of primary keys between levels.

To Reproduce

from spyglass.spikesorting.spikesorting_merge import SpikeSortingOutput
import spyglass.spikesorting.v1 as sgs

restr = {"nwb_file_name":"BS2820231107_.nwb", "sort_group_id": 9}
rec_restr = (sgs.SpikeSortingSelection.proj() * (sgs.SpikeSortingRecordingSelection & restr).proj()).fetch('recording_id', as_dict=True) 
del_key = (sgs.SpikeSortingSelection & rec_restr & {"sorter_param_name": "franklab_probe_ctx_30KHz"}).fetch("KEY",as_dict=True)
sgs.SpikeSortingSelection & del_key # gives 6 entries
(sgs.SpikeSortingSelection).delete(del_key) # deletes 6 entries from SpikeSortingSelection, all entries from SpikeSortingOutput.CurationV1