fix cleaning upon gsheet import

app/api/endpoints/project.py

@@ -115,7 +115,7 @@ async def update_project_from_gsheet(
     session: Session = Depends(deps.get_session),
 ):
     """Edit project name"""
-    p = session.get(Project, project_id)
+    p: Project = session.get(Project, project_id)
     if p is None:
         raise HTTPException(status_code=404, detail="Project not found")
     doc_id = extract_doc_uid(gsheet.sheet_url)
@@ -123,6 +123,8 @@ async def update_project_from_gsheet(
         p.slots = []
         p.sms = []
         p.volunteers = []
+        p.tags = []
+        p.templates = []
     # Parse the gsheets
     try:
         data = parseGsheet(doc_id, gsheet.satursday_date)
@@ -145,7 +147,7 @@ async def update_project_from_gsheet(
 
     # Create creneau templates
     template_map = {}
-    tags_map = {}
+    tags_map = {tag.title: tag for tag in p.tags}
 
     for _, row in data.creneauData.iterrows():
         template = SlotTemplate(