diff --git a/swh/loader/git/from_disk.py b/swh/loader/git/from_disk.py
--- a/swh/loader/git/from_disk.py
+++ b/swh/loader/git/from_disk.py
@@ -22,6 +22,7 @@
 from swh.model import hashutil
 from swh.model.model import Origin, Snapshot, SnapshotBranch, TargetType
 from swh.loader.core.loader import DVCSLoader
+from swh.storage.algos.snapshot import snapshot_get_latest
 
 from . import converters, utils
 
@@ -139,13 +140,8 @@
 
     def fetch_data(self):
         """Fetch the data from the data source"""
-        previous_visit = self.storage.origin_visit_get_latest(
-            self.origin.url, require_snapshot=True
-        )
-        if previous_visit:
-            self.previous_snapshot_id = previous_visit["snapshot"]
-        else:
-            self.previous_snapshot_id = None
+        snapshot = snapshot_get_latest(self.storage, self.origin_url, branches_count=1)
+        self.previous_snapshot_id = snapshot.id if snapshot is not None else None
 
         type_to_ids = defaultdict(list)
         for oid in self.iter_objects():
diff --git a/swh/loader/git/loader.py b/swh/loader/git/loader.py
--- a/swh/loader/git/loader.py
+++ b/swh/loader/git/loader.py
@@ -30,7 +30,7 @@
     Sha1Git,
 )
 from swh.loader.core.loader import DVCSLoader
-from swh.storage.algos.snapshot import snapshot_get_all_branches
+from swh.storage.algos.snapshot import snapshot_get_latest
 
 from . import converters, utils
 
@@ -210,14 +210,7 @@
         self.origin = Origin(url=self.origin_url)
 
     def get_full_snapshot(self, origin_url) -> Optional[Snapshot]:
-        visit = self.storage.origin_visit_get_latest(origin_url, require_snapshot=True)
-        if visit and visit["snapshot"]:
-            snapshot = snapshot_get_all_branches(self.storage, visit["snapshot"])
-        else:
-            snapshot = None
-        if snapshot is None:
-            return None
-        return Snapshot.from_dict(snapshot)
+        return snapshot_get_latest(self.storage, origin_url)
 
     def prepare(self, *args, **kwargs) -> None:
         assert self.origin is not None