DAQ: if no sample, sample name called unknown_sample to allow debugging rotation and raster scans

daq/src/mxlibs3/jfjoch.py

@@ -37,7 +37,7 @@ class JFJochWrapper:
                          s: DAQStatusModel) -> None:
         if s.sample is None:
             pgroup = "p16371"
-            sample = None
+            sample = "unknown_sample"
         else:
             pgroup = s.sample.user
             sample = s.sample.sample_name
@@ -90,7 +90,7 @@ class JFJochWrapper:
                        s: DAQStatusModel):
         if s.sample is None:
             pgroup = "p16371"
-            sample = None
+            sample = "unknown_sample"
         else:
             pgroup = s.sample.user
             sample = s.sample.sample_name