[Jungfrau][Correct] Fix not returning after finding a dark fixed gain constants

Description

A bug was found during MID BUD. The data being corrected was in dynamic gain and as a result, a fixed gain constant is forced to be retrieved and used. The correction failed even though there were fixed dark constants found. The reason was a bug of not returning the retrieved CCVs and instead going for retrieved dynamic constants.

How Has This Been Tested?

THIS IS HOTFIXED IN PRODUCTION: COMPLETED_MID_EXP_JF500K1_correct.pdf

• Is there another way to test this part without depending on the reference runs we have?

Relevant Documents (optional)

FAILED_MID_EXP_JF500K1_correct.pdf

Types of changes

Checklist:

Reviewers

notebooks/Jungfrau/Jungfrau_Gain_Correct_and_Verify_NBC.ipynb

             "No fixed gain constants found. "
             "Looking for dynamic gain constant. "
             f"(CalCatError: {e}.")
+    else:
+        return jf_cal, jf_metadata
 
+    # In case of CALCATError exception look for dynamic gain constants
     jf_cal, jf_metadata = jungfrau_cal_mdata(gm=0)
 
     for mod, ccvs in jf_metadata.items():