bug fix in applying template alphas when sampling likelihoods with foreground parameters

Author: arahlin

xfaster/xfaster_class.py

@@ -2261,7 +2261,12 @@ def get_masked_data(
             template_specs = self.specs
 
         # ensure dictionary
-        if template_alpha is None or null_run or template_type is None:
+        if (
+            template_alpha is None
+            or null_run
+            or (update_template and self.template_type is None)
+            or (not update_template and template_type is None)
+        ):
             template_alpha = OrderedDict()
         else:
             # ensure tagged by original tags