fix loading data from the sync stream (#3959)

Author: h-mayorquin

src/spikeinterface/extractors/neoextractors/spikeglx.py

@@ -75,13 +75,18 @@ def __init__(
 
         self._kwargs.update(dict(folder_path=str(Path(folder_path).absolute()), load_sync_channel=load_sync_channel))
 
+        stream_is_nidq_or_sync = "nidq" in self.stream_id or "SYNC" in self.stream_id
+        if stream_is_nidq_or_sync:
+            # Do not add probe information for the sync or nidq stream. Early return
+            return None
+
         # Checks if the probe information is available and adds location, shanks and sample shift if available.
         signals_info_dict = {e["stream_name"]: e for e in self.neo_reader.signals_info_list}
         meta_filename = signals_info_dict[self.stream_id]["meta_file"]
+
         ap_meta_filename = meta_filename.replace(".lf", ".ap") if "lf" in self.stream_id else meta_filename
         ap_meta_file_exists = Path(ap_meta_filename).exists()
-        stream_is_not_nidq = "nidq" not in self.stream_id
-        add_probe_properties = ap_meta_file_exists and stream_is_not_nidq and not load_sync_channel
+        add_probe_properties = ap_meta_file_exists and not load_sync_channel
 
         if add_probe_properties:
             probe = probeinterface.read_spikeglx(ap_meta_filename)

src/spikeinterface/extractors/tests/test_neoextractors.py

@@ -101,9 +101,9 @@ class SpikeGLXRecordingTest(RecordingCommonTestSuite, unittest.TestCase):
     downloads = ["spikeglx"]
     entities = [
         ("spikeglx/Noise4Sam_g0", {"stream_id": "imec0.ap"}),
-        ("spikeglx/Noise4Sam_g0", {"stream_id": "imec0.ap", "load_sync_channel": True}),
         ("spikeglx/Noise4Sam_g0", {"stream_id": "imec0.lf"}),
         ("spikeglx/Noise4Sam_g0", {"stream_id": "nidq"}),
+        ("spikeglx/Noise4Sam_g0", {"stream_id": "imec0.ap-SYNC"}),
     ]