Backport PR #1431: Fix warning for old model version when using scArc…

…hes (#1433)

Co-authored-by: Gregor Sturm <[email protected]>

scvi/model/base/_archesmixin.py

@@ -119,7 +119,7 @@ def load_query_data(
         adata_manager = model.get_anndata_manager(adata, required=True)
 
         version_split = adata_manager.registry[_constants._SCVI_VERSION_KEY].split(".")
-        if version_split[1] < "8" and version_split[0] == "0":
+        if int(version_split[1]) < 8 and int(version_split[0]) == 0:
             warnings.warn(
                 "Query integration should be performed using models trained with version >= 0.8"
             )