diff --git a/augur/tasks/git/facade_tasks.py b/augur/tasks/git/facade_tasks.py
index d9daf4571b..e330be9dfc 100644
--- a/augur/tasks/git/facade_tasks.py
+++ b/augur/tasks/git/facade_tasks.py
@@ -324,10 +324,9 @@ def analyze_commits_in_parallel(repo_ids, multithreaded: bool)-> None:
 @celery.task
 def nuke_affiliations_facade_task():
     logger = logging.getLogger(nuke_affiliations_facade_task.__name__)
-    # TODO: Is this session ever closed?
-    session = FacadeSession(logger)
-
-    nuke_affiliations(session)
+    
+    with FacadeSession(logger) as session:
+        nuke_affiliations(session)
 
 @celery.task
 def fill_empty_affiliations_facade_task():
@@ -462,7 +461,7 @@ def generate_contributor_sequence(logger,repo_git_identifiers):
 
 
 
-def generate_facade_chain(logger,repo_git_identifiers):
+def generate_facade_chain(logger,repo_git_identifiers, firstRun=False):
     #raise NotImplemented
 
     logger.info("Generating facade sequence")
@@ -514,17 +513,17 @@ def generate_facade_chain(logger,repo_git_identifiers):
         #Generate contributor analysis task group.
         facade_sequence.append(generate_contributor_sequence(logger,repo_git_identifiers))
 
-        if nuke_stored_affiliations:
+        if nuke_stored_affiliations and firstRun:
             facade_sequence.append(nuke_affiliations_facade_task.si().on_error(facade_error_handler.s()))#nuke_affiliations(session.cfg)
 
         #session.logger.info(session.cfg)
-        if not limited_run or (limited_run and fix_affiliations):
+        if not limited_run or (limited_run and fix_affiliations) and firstRun:
             facade_sequence.append(fill_empty_affiliations_facade_task.si().on_error(facade_error_handler.s()))#fill_empty_affiliations(session)
 
-        if force_invalidate_caches:
+        if force_invalidate_caches and firstRun:
             facade_sequence.append(invalidate_caches_facade_task.si().on_error(facade_error_handler.s()))#invalidate_caches(session.cfg)
 
-        if not limited_run or (limited_run and rebuild_caches):
+        if not limited_run or (limited_run and rebuild_caches) and firstRun:
             facade_sequence.append(rebuild_unknown_affiliation_and_web_caches_facade_task.si().on_error(facade_error_handler.s()))#rebuild_unknown_affiliation_and_web_caches(session.cfg)
         
         logger.info(f"Facade sequence: {facade_sequence}")
diff --git a/augur/tasks/git/util/facade_worker/facade_worker/facade07rebuildcache.py b/augur/tasks/git/util/facade_worker/facade_worker/facade07rebuildcache.py
index 385de4dc36..252f82b0cd 100644
--- a/augur/tasks/git/util/facade_worker/facade_worker/facade07rebuildcache.py
+++ b/augur/tasks/git/util/facade_worker/facade_worker/facade07rebuildcache.py
@@ -43,7 +43,7 @@
 # else:
 #   import MySQLdb
 
-def nuke_affiliations(session):
+def nuke_affiliations(session, repo_id_list):
 
 # Delete all stored affiliations in the database. Normally when you
 # add/remove/change affiliation data via the web UI, any potentially affected
@@ -56,7 +56,8 @@ def nuke_affiliations(session):
     session.log_activity('Info','Nuking affiliations')
 
     nuke = s.sql.text("""UPDATE commits SET cmt_author_affiliation = NULL,
-            cmt_committer_affiliation = NULL""")
+            cmt_committer_affiliation = NULL
+            WHERE repo_id IN :values""").bindparams(values=tuple(repo_id_list))
 
     session.execute_sql(nuke)
 
diff --git a/augur/tasks/github/facade_github/tasks.py b/augur/tasks/github/facade_github/tasks.py
index 74c2aa139c..d15f4636dd 100644
--- a/augur/tasks/github/facade_github/tasks.py
+++ b/augur/tasks/github/facade_github/tasks.py
@@ -210,10 +210,9 @@ def link_commits_to_contributor(session,contributorQueue):
         query = s.sql.text("""
                 UPDATE commits 
                 SET cmt_ght_author_id=:cntrb_id
-                WHERE cmt_committer_email=:cntrb_email
-                OR cmt_author_raw_email=:cntrb_email
+                WHERE 
+                cmt_author_raw_email=:cntrb_email
                 OR cmt_author_email=:cntrb_email
-                OR cmt_committer_raw_email=:cntrb_email
         """).bindparams(cntrb_id=cntrb["cntrb_id"],cntrb_email=cntrb["email"])
 
         #engine.execute(query, **data)
diff --git a/augur/tasks/start_tasks.py b/augur/tasks/start_tasks.py
index 2dae9d8f8c..6188c04dd9 100644
--- a/augur/tasks/start_tasks.py
+++ b/augur/tasks/start_tasks.py
@@ -97,7 +97,7 @@ def repo_collect_phase():
         repo_task_group = group(
             *repo_info_tasks,
             chain(primary_repo_jobs,secondary_repo_jobs,process_contributors.si()),
-            chain(generate_facade_chain(logger,first_pass),create_grouped_task_load(dataList=first_pass,task=process_dependency_metrics)),
+            chain(generate_facade_chain(logger,first_pass,firstRun=True),create_grouped_task_load(dataList=first_pass,task=process_dependency_metrics)),
             collect_releases.si()
         )