Add flux columns to reprocessVisitImage schema init-output.

python/lsst/drp/tasks/reprocess_visit_image.py

@@ -26,6 +26,7 @@
 
 import lsst.afw.image as afwImage
 import lsst.afw.table as afwTable
+import lsst.geom
 import lsst.meas.algorithms
 import lsst.meas.deblender
 import lsst.meas.extensions.photometryKron
@@ -314,8 +315,11 @@ def __init__(self, sources_schema=None, **kwargs):
             type="Flag",
             doc="Unused; placeholder for SDM schemas.",
         )
-
-        self.sources_schema = afwTable.SourceCatalog(sources_schema)
+        # The final catalog will have calibrated flux columns, which we add to
+        # the init-output schema by calibrating our zero-length catalog with an
+        # arbitrary dummy PhotoCalib.
+        dummy_photo_calib = afwImage.PhotoCalib(1.0, 0, bbox=lsst.geom.Box2I())
+        self.sources_schema = dummy_photo_calib.calibrateCatalog(afwTable.SourceCatalog(sources_schema))
 
     def runQuantum(self, butlerQC, inputRefs, outputRefs):
         inputs = butlerQC.get(inputRefs)