BF: fixup for recent RF fl -> files which collided with use of files later in the code

Author: yarikoptic

bin/heudiconv

@@ -450,7 +450,7 @@ def group_dicoms_into_seqinfos(
             # nothing to see here, just move on
             continue
         dcminfo = mw.dcm_data
-        files = [files[i] for i, s in enumerate(groups[0]) if s == series_id]
+        series_files = [files[i] for i, s in enumerate(groups[0]) if s == series_id]
         # turn the series_id into a human-readable string -- string is needed
         # for JSON storage later on
         if per_studyUID:
@@ -460,7 +460,7 @@ def group_dicoms_into_seqinfos(
 
         series_id = '-'.join(map(str, series_id))
 
-        size = list(mw.image_shape) + [len(files)]
+        size = list(mw.image_shape) + [len(series_files)]
         total += size[-1]
         if len(size) < 4:
             size.append(1)
@@ -482,9 +482,9 @@ def group_dicoms_into_seqinfos(
                            or 'MOCO' in image_type
         info = SeqInfo(
             total,
-            os.path.split(files[0])[1],
+            os.path.split(series_files[0])[1],
             series_id,
-            os.path.basename(os.path.dirname(files[0])),
+            os.path.basename(os.path.dirname(series_files[0])),
             '-', '-',
             size[0], size[1], size[2], size[3],
             TR, TE,
@@ -527,13 +527,13 @@ def group_dicoms_into_seqinfos(
         if per_studyUID:
             if studyUID not in seqinfo:
                 seqinfo[studyUID] = ordereddict()
-            seqinfo[studyUID][info] = files
+            seqinfo[studyUID][info] = series_files
         elif per_accession_number:
             if accession_number not in seqinfo:
                 seqinfo[accession_number] = ordereddict()
-            seqinfo[accession_number][info] = files
+            seqinfo[accession_number][info] = series_files
         else:
-            seqinfo[info] = files
+            seqinfo[info] = series_files
 
     if per_studyUID:
         lgr.info("Generated sequence info for %d studies with %d entries total",