fix: add flexibility as to whether group multiecho

Author: oesteban

niworkflows/utils/bids.py

@@ -167,6 +167,7 @@ def collect_data(
     session_id=None,
     task=None,
     echo=None,
+    group_me=True,
     bids_validate=True,
     bids_filters=None,
     queries=None,
@@ -261,7 +262,11 @@ def collect_data(
     }
 
     # Special case: multi-echo BOLD, grouping echos
-    if any(["_echo-" in bold for bold in subj_data["bold"]]):
+    if (
+        group_me
+        and "bold" in subj_data
+        and any(["_echo-" in bold for bold in subj_data["bold"]])
+    ):
         subj_data["bold"] = group_multiecho(subj_data["bold"])
 
     return subj_data, layout