Fix UI errors selecting empty ifcpatch ("-")

src/bonsai/bonsai/bim/module/patch/operator.py

@@ -111,7 +111,7 @@ class UpdateIfcPatchArguments(bpy.types.Operator):
     recipe: bpy.props.StringProperty()
 
     def execute(self, context):
-        if self.recipe == "":
+        if self.recipe == "-":
             print("No Recipe Selected. Impossible to load arguments")
             return {"FINISHED"}
         patch_args = context.scene.BIMPatchProperties.ifc_patch_args_attr