Remove Fabric "replace_env" setting

ROLLING OVER.md

@@ -101,6 +101,9 @@ delete from auth_user where is_staff = false;
 
 Set any remaining account `completed_registration` to false.
 
+
+# Step 5: Update conference details and dates
+
 Add a new Conference entry in Django Admin and update the `CONFERENCE_ID` in pinaxcon/settings.py. Also update the conference dates.
 
 Find and update all uses of 2026 and the conference dates in this codebase.

fabfile.py

@@ -75,10 +75,7 @@ ns.configure({
     # Built-in Fabric config.
     'run': {
         'echo': True,
-        # Needed so local commands work. Can also use FABRIC_RUN_REPLACE_ENV.
-        'replace_env': False,
     },
-
     # Our custom project config.
     'env': {
         'branch': 'fossy2026',